The Wood Stork (Mycteria americana) is an “indicator species” of the Everglades, and it tells us much about the health of the imperiled ecosystem. The breeding success of the species depends on the region’s complex water cycles and their effect on food availability. If storks fail to breed any one year, it is likely due to poor management of our wetlands, which have been diked and controlled for several decades. Stork diet includes many species of small fish, crabs, crayfish, snakes, frogs, young alligators, rodents, and occasionally the young of other bird species. Wood Storks typically wade with their open bills in shallow water, snapping them shut very quickly at the slightest touch of food matter.
Detail of “Wood Storks at Paurotis Pond.” This watercolor is being done on site, while observing the birds through Leica APO-Televid 65 and 77 scopes.
Below are various works in progress featuring Wood Storks, done at the Everglades during breeding season. CLICK ON AN IMAGE TO ACTIVATE THE CAROUSEL.
At a breeding colony, Wood Storks crowd the trees with large nests made of sticks. An adult (top left) greets its mate with bill-clappering and guttural noises. Week-old downy young (top center) wait to be fed while a subadult stork preens nearby. After five weeks (top right) young storks become restless and may stand up in their nests, sometimes watchful of fledging birds (bottom center) trying their wings.
Breeding Wood Storks require a fairly low and decreasing water level to concentrate needed food resources for successful feeding of their young. Too much or too little water can cause abandonment of the breeding colony. Below, storks compete at a feeding hole near Pa-hay-okee during the dry season. Dominant adults strut with erect feathers to protect territory.
The most easily observable breeding colony in the Everglades is at Paurotis Pond during the winter and spring. There, the storks nest typically on clumps of Red Mangroves where hundreds may be seen nesting nearby Roseate Spoonbills, Great Egrets, Anhingas, and others.
Infamous for being the site of one of the most brutal bird massacres during the plume hunting era, Cuthbert Lake still holds a Wood Stork colony. I did this sketch from a skiff while surveying the area with Audubon colleagues.
Wood Storks reach maturity after their third year, by which point they lose all the feathers on their heads and necks, which become bare, covered with scales. The bills and heads of adults are dark (right). Subadult birds show dark heads with irregular feathering and bare areas (center). First-year birds have feathered heads stained brown and yellowish bills (left).
Quick thumbnail sketches of Wood Storks exhibiting aggressive behavior while defending their place at a feeding hole.
Quick thumbnail sketches of Wood Storks taking off and returning to their rookeries, done at Paurotis Pond.
An ink illustration, derived from watercolors done at Paurotis Pond, Everglades – used for an educational activity included in the Tropical Audubon Publication.
During breeding season, adults develop a light golden wash on their underwing coverts, noticeable when in flight.
Detail of “Wood Storks at Paurotis Pond.” This watercolor is being done on site, while observing the birds through Leica APO-Televid 65 and 77 scopes.
The following are illustrations included in my 2005 field guide to Raptors and Owls of Georgia (Buneba Print) – which includes all the then-known diurnal and nocturnal birds of prey found in the nation of the Caucasus Region. The book was produced in collaboration with the Georgian Center for the Conservation of Wildlife – a BirdLife International affiliate, and was coauthored by Lexo Gavashelishvili and Zura Javakhishvili. The gallery below also includes some of the sketches created in preparation for the guide during the fall of 2004. Only some of the book’s illustrations of vultures are shown here.
CLICK ON THE TILES BELOW TO INITIATE THE SLIDE CAROUSEL:
Ravens are among the first attracted to carrion, followed closely by Egyptian Vultures. Unable to tear the skin with ease, they eat out the eyes and soft parts. Soon, Griffons arrive attracted by encircling birds. Cinereous Vultures arrive last in smaller numbers, waiting at the periphery for a chance to feed.
The Cinereous Vulture (Aegypius monachus) depicted in juvenile plumage (top) and two adult variants.
The lower half of the Egyptian Vulture (Neophron percnopterus) plate in the “Raptors and Owls” guide. It was executed almost entirely from the Davit Garegi Monastery, near the border between Georgia and Azerbaijan.
The Eurasian Griffon Vulture (Gyps fulvus) depicted in juvenile and adult plumages.
A feeding scene included in a behavior/habitat spread in “Raptors and Owls of Georgia.” Magpies and a young Egyptian Vulture discover the carrion. When Griffons congregate in low numbers, Cinereous Vultures dominate the feeding, and the hungrier birds aggressively defend the carcass while all others wait.
Thumbnails included in a behavior/habitat spread in “Raptors and Owls of Georgia.” A colony of Griffons nesting in semi-desert mountain caves. The nest is often no more than twigs and branches lining a ledge.
An adult Lammergeier (Gypaetus barbatus). This “bearded vulture” acquires its orange coloration by wallowing in iron-rich springs and mud.
Adult and juvenile Lammergeiers depicted in flight.
Graphite and watercolor thumbnails included in the upper portion of the species’ plate, depicting some of the flight attitudes of this large vulture.
Images included in the upper portion of the Egyptian Vulture plate, depicting four ages/plumages of the species.
If you are interested in any of these works, either the originals or prints, please contact Rafael at GalvezBirds@gmail.com
Raptors and Owls of Georgia was the first comprehensive field guide to the birds of prey recorded in this mountainous country, describing 45 species including breeding birds, seasonal residents, migrants, and uncommon visitors.
The book is available for sale through the following distributors: NHBS (UK), Buteo Book (U.S.) and Amazon.
Some of these illustrations were also included in Lexo Gavashelishvili’s excellent book, Vultures of Georgia and the Caucasus(Buneba Print, 2005).
“How do I get started with sketching birds in the field?”
While one could get into tedious preparations by buying materials and equipment before making the first marks, all one really needs is a regular old pencil and a pad to get started with field sketching.
But before you get started, you may want to consider the following points:
Don’t forget the importance of observation!
Practice, Practice Practice!
Have lofty goals, but realistic expectations.
Start simple.
Below I will delve more into each of these points. These apply when our goal is to depict birds and other wildlife with some degree of accuracy from observation. If you are only interested in copying images or stylizations based on imagination, then worry not about these points:
Don’t forget the importance of observation!
If you are struggling with drawing the shape of a shorebird, you should remember that the answer to your frustrations is in the shorebird itself. A fair dose of “observation” will give you the necessary information to draw the parts of the bird with more accuracy.
If you are spending too much time drawing, and not enough time observing, chances are that you are making things up. You will likely never achieve the degree of desired accuracy in your renderings if you don’t spend plenty of time observing your subject.
TRY THIS: Spend no more than 10 seconds sketching after 5 seconds of observation – and so on… Ideally, you want to spend as much time observing as you do sketching.
Practice, practice, practice!
While it may be relatively easy to pick up a pencil and draw a pleasant stylization of a bird, it takes plenty of practice to draw what we see in the field. Practice goes a long way!
Warm up! In the same way we warm-up before exercising, do gesture drawings to loosen up your arms and hone in your observation skills before committing to longer renderings.
TRY THIS: Don’t get too caught up in any one drawing, but do as many quick sketches as possible, aiming to capture different aspects of the bird in each.
This sample of gesture drawings was done in a few minutes at an agricultural field near my house on an August afternoon. Some of the sketches are no more than a few lines, yet they address the general postures of the birds observed. With more time, I was able to add some pencil smudging to denote volume, and texture.
Have lofty goals, but realistic expectations.
Your goal may be to create epic paintings with multiple birds and habitat – but remember that it takes time and commitment to grow in this craft.
You will also discover that each small step leads to greater accomplishments. Stick to it and you will get far.
If you are just beginning, learn to take your work lightly at first. Laugh at mistakes – and make plenty because that is how we learn.
TRY THIS: Make several sketches from observation, without using an eraser* to correct mistakes. Instead, redraw your lines until you find the right shapes.
* Erasers are great tools, but they have their place and time. Don’t get too caught up erasing mistakes.
Start simple.
To get started, all you really need is a pencil and a pad.
See if you can first “capture the gestures” of birds, before getting into any kind of detail.
Before setting out on epic sketching expeditions to your nearby preserve, practice on common birds in your backyard – practice gestures on your pet, on people, on inanimate objects, etc.
TRY THIS: Keep a small pad handy at all times. Do quick gestures while stuck in a waiting room or when taking a break at work. Remember – these are just practice gestures, so it does not matter how “nice” they look. Move on!
After you have considered these points, you may realize there is much more to this field sketching business. I am a strong proponent of sketching wildlife through the use of binoculars or a spotting scope – when advantageous. However, if you live near a natural site where birds are accustomed to human proximity, you may not need these tools. A simple and excellent opportunity may be practicing with feeder birds at your backyard.
Examination of the Bill and Buccal Cavity of an Adult Razorbill
(Alca torda) Specimen from the Dry Tortugas, December 18, 2012
Rostrolateral view of an Alca torda bill and buccal organs, sketched from direct examination of a corpse found in Dry Tortugas National Park on 12/18/2012. CLICK IMAGE TO ENLARGE.
During the winter of 2012-2013, hundreds of Razorbills were seen off the coasts of South Florida; an unprecedented event in recorded history. Most of the documented birds that engaged in this ‘invasion’ event appeared to be young or immature. The distinctive bill of the species has received significant attention in several studies, and has been suggested as an aid in determining the maturity of individual birds. Considering the relative few adult individuals documented on Florida waters this winter, the finding of an adult Alca torda corpse in the Dry Tortugas (DRTO) during the Christmas Bird Count (113th) expedition offered a unique opportunity to closely examine a mature bill. The fresh specimen also presented an opportunity to study the uncorrupted interior of the mouth and the buccal organs, which are adapted to catching and retaining fish prey and are bright yellow in adult birds.
The bill of the Alca torda – or Razorbill – is perhaps the most distinctive physical trait of the species. With maturity, the bill may grow to be a relatively large and laterally compressed organ with a steeply curved culmen and a complex sculpting of grooves and ridges. Birds develop an arching white “band” across the upper and lower mandibles as they age, and rarely two bands. The bill undergoes many stresses while foraging and during breeding disputes, and may develop a buttressed sculpt to reinforce the narrow organ. The mouth interior and tongue of adults are an intense warm yellow. These are used in breeding displays and to incite feeding behavior.
By contrast, the bills of younger birds have flatter culmens, and may be entirely devoid of grooves. At all ages, the bill is primarily black and glossy, with a hooked tip and sharp distal tomia that flatten and broaden towards the gape. The interior of the juvenile mouth is pale yellow.
Fig. 1. Lateral view of Alca torda bill, sketched from direct observation, DRTO 12/18/2012 specimen. CLICK IMAGE TO ENLARGE.
After breeding, Razorbills will shed the outermost layer of the bill, reducing its overall size, and dulling its gloss and color. This shedding of the external sheath of the bill is true also of other alcids, particularly the puffins (Fratercula). With the arrival of the breeding season, an outer keratin layer develops; in the Alcidae this may be manifested in the form of plates, knobs or horny projections that serve as ornamentation for courtship purposes. In Razorbills, the sculpting of the bill’s grooves becomes pronounced, the ridges smoother and rounder, and the black darker and glossier, contrasting a whiter band when present.
Studies at breeding colonies have explored the potential for aging individual Razorbills based on the number and characteristic of bill grooves (Jones 1988). However, the shape and sculpture of bills is variable individually, geographically and possibly even sexually in Razorbills. It is unclear how sexual maturity relates to bill development. Some Razorbills have been known to breed earlier in Nearctic colonies, compared to the Palearctic (Lavers et al. 2008). In general, the bill develops slowly in the species, and may continually become deeper and more grooved in some birds as they age.
R. A. Galvez. Adapted from Jones 1988, Lloyd and Perrins 1977, Lavers et al. 2008. CLICK CHART TO ENLARGE.
The distinctive white band across the bill does not generally begin developing until approximately 15 months of age, so it is unlikely that birds in their first winter show any sign of this trait. Rarely, old birds with two bands have been documented, but this may be associated with geographical tendencies. As Razorbills age and the bill becomes deeper, one proximal groove, and up to three grooves distal of the white band may develop.
The ageing of Razorbills based on the development of their bills cannot be done with accuracy, in part because sexual maturity in the species may be attained anytime between the third and sixth year of life. Some birds may never develop more than a single distal groove their entire lifespan, and this may influence their success as breeders (De Wijs 1983). A 1988 study by Jones demonstrated through the trapping and measuring of breeding birds in the Palearctic that a small margin of birds (9%) had developed a third groove distal of the white band. Only birds past their third summer had more than two distal grooves. That study also showed a tendency for bill depth and wing length to increase with age.
The impromptu situation during this Christmas Bird Count expedition to the Dry Tortugas (December 18-20, 2012) did not allow for the proper measuring of the found corpse, therefore it is hoped that a prepared specimen will supply future details. On the other hand, this might have been one of the only opportunities to examine the remarkable yellow buccal cavity of the bird, since internal tissue deterioration had likely commenced, and frozen birds may present challenges in this camp.
In addition to ornamental bill parts, the Alcidae are also known for colorful mouth interiors, used during threat displays and courtship. These range from light blue in Ancient Murrelet (Synthliboramphus antiquus) to vermilion in guillemots (Cepphus), and are yellow-orange in breeding Razorbills. Additionally, their mouths and tongues are equipped with specialized projections and gripping accessories that allow for the trapping of slippery prey.
During the breeding season, Razorbills may carry multiple fish from several fishing bouts crosswise on their bills. Prey such as capelin or sandlace are carried by breeding adults from the ocean back to nest sites on cliff ledges, and fed to the young. The Razorbill’s buccal organs are well adapted for continually foraging and catching prey while securely retaining earlier catches. After fish are caught, they are slipped back towards the gape with the aid of the smooth anterior end of the tongue. The fish are gripped tightly against the horny palate by projections on the posterior of the tongue. The knobbed and flexible inner lining of the mouth helps secure prey. In this manner, a Razorbill is able to repeatedly open its bill to continue foraging while as many as half a dozen fish remain in place.
Working from the Dead Specimen
I found this freshly deceased Razorbill washed up on the southeastern-most shoreline of Garden Key, in Dry Tortugas National Park on the evening of December 18, the night before the annual Christmas Bird Count. During these occasions, our count team stays in the barracks of Fort Jefferson, which offer modest accommodations but no suitable work space. I spent much of that night awake, sketching this Razorbill under flashlights and my headlamp.
The renderings of the bill and buccal cavity of this specimen were drafted from direct observation, aiming to depict proportionate relationships in the form and shapes of each organ. No calipers were used, nor was there an opportunity to make drawings based on measurements. The specimen was surrendered to the National Park Service and transported back to the mainland in the freezer of the NPS M/V Fort Jefferson vessel. I was informed that it would be taken to a research facility for preparation and possible eventual submission to the Florida Museum of Natural History at UF.
References:
Barrett, R.T., Ankier-Nilssen, T. & Krasnov, Y.V. 1997. Can Norwegian and Russian Razorbills Alca torda be identified by their measurements? Marine Ornithology 25: 5–8.
Chapman, Frank M. 1966. Handbook of Birds, Eastern North America. Dover Publications, New York.
De Wijs, W. J. R. 1983. Proposed ageing system for Common Guillemot and Razorbill. Nieuwsbrief Nederlands Stook. Omler. 16: 123-132.
Feducia, Alan. 1999. The Origin and Evolution of Birds. Yale University Press, New Haven.
Johnsgard, Paul A., “Diving Birds of North America: Species Accounts — Auks (Alcidae)” (1987). Diving Birds of North America, by Paul Johnsgard. Paper 11.
Jones, P. Hope (1988): Post‐fledging wing and bill development in the Razorbill Alca torda islandica, Ringing & Migration, 9:1, 11-17.
Lavers, Jennifer, Mark Hipfner, Gilles Chapdelaine and J. Mark Hipfner. 2009. Razorbill (Alca torda), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/635 doi:10.2173/bna.635
Lavers, J.L., I.L. Jones and A.W. Diamond. 2008. Age at First Return and Breeding of Razorbills (Alca torda) on the Gannet Islands, Labrador and Machias Seal Island, New Brunswick. Waterbirds 31(1): 30-34, 2008.
Lloyd, C. S. and C. M. Perrins. 1977. Survival and age at first breeding in the Razorbill. Bird-Banding 48: 239-252.
Lofgren, Lars. 1987. Ocean Birds. Crescent Books, New York.
Proctor, Noble S. and Pratrick J. Lynch. Manual of Ornithology. Avian Structure & Function. Yale University Press, New Haven.
Pyle, P. 2008. Identification guide to North American birds. Part II: Anatidae to Alcidae. Slate Creek Press, Point Reyes Station, CA.
Welty, Joel C. and Luis Baptista. 1988. The Life of Birds. Fourth Edition. Saunders College Publishing, New York.
“Everglades Sketchbook 8″ is a 9″x12″ ring-bound watercolor pad I purchased in 2005 with the aim of doing quick, in-the-moment landscapes. I have used it on and off for nearly 10 years now, and a few of its pages are still blank.
Sketch done from the edge of an unnamed cypress dome south of Pa-hay-okee. January 12, 2007.
Sketched during an afternoon outing, winter of 2007, from the outskirts of the Dwarf Cypress Forest.
An open spread showing two moments in time at one of the small lakes west of Long Pine Key. Done during the afternoon of December 30, 2005.
Done at the southern edge of Big Cypress National Preserve, where Slash Pines give way to scattered Sawgrass Prairies, and larger Cabbage Palms are about. Fall of 2008.
A sketch done at the Hole-In-The-Donut restoration area, from the berm south of Gate 15 overlooking Taylor Slough to the east on October 15, 2006.
This sketch was done in Big Cypress National Preserve, about 3 miles north of Oasis, from within a cypress dome on February 2, 2007.
An evening sketch from January 5, 2007, done from the road leading to the Pa-hay-okee Overlook. The hyphened word is a native American term given to the Everglades, meaning “Grassy Water.”
A watercolor sketch done from the southwestern edge of Pine Glades Lake, west of Long Pine Key during late afternoon, November 22, 2006.
While driving towards Royal Palm during the afternoon of March 18, 2006, I noticed a fire to the north, beyond Taylor Slough. I pulled over and did this sketch from the roadside.
“Everglades Sketchbook 8” is a 9″x12″ ring-bound watercolor pad I purchased in 2005 with the aim of doing quick, in-the-moment landscapes. I have used it on and off for nearly 10 years now, and a few of its pages are still blank.
June 10, 2012. Asa Wright Nature Center and Lodge, Northern Range, Trinidad.
Falco rufigularis: A small and intrepid Neotropical falcon that takes most of its prey on the wing. Though it does consume bats, these typically compose no more than 15% of its diet. It hunts primarily hummingbirds, tanagers and swifts by agile aerial pursuits, though insects such as dragonflies and lepidopterans are also taken in substantial quantities. Rodents and other ground dwellers are taken on occasion. It is the falcon with the highest rate of reversed sexual dimorphism, with females up to 30% larger than males.
A Bat Falcon perched on a snag overlooking the Asa Wright estate house, and most members of my Caligo Ventures group had already seen it from the spectacular veranda by the time I got there that morning.
It was raining and mist could be seen over the Arima Valley below, climbing the forested slopes of the surrounding mountains. The wet falcon kept mostly in a tucked posture, perched above eye level and facing down the slope.
The colors of some birds appear saturated when wet and their feathers become stringy, hugging the body and giving them an unusual contour. This morning, the sky washed with a thick atmosphere that flattened distances, and the falcon appeared dark and silhouetted.
I must confess that Bat Falcon was high up on my Trinidad & Tobago (T&T) wish list, and I was thrilled to see this bird regardless of lighting conditions. The proximity lent by my trusty scope – Leica Televid series – fixed this.
I decided to truncate breakfast and stayed with the bird some 40 minutes. We were soon to depart on a full day’s journey, and as we learned the hard way, the tour bus waited for no one. I managed to do a couple of watercolor sketches and several quick pencil and ink renderings. All the renderings in this post were done based on field observations of this bird from the Asa Wright veranda.
My first impression was that of a small bull-headed falcon in the vein of a stocky Eurasian Hobby. Superficially, the combination of a heavily patterned breast against rufous thighs and vent add to this. And the aerobatics of the Bat Falcon have a similar reputation as the hobbies, in terms of speed and agility. However, authorities consider the species a closer relative of the Aplomado Falcon, and particularly of the Orange-breasted Falcon, with which they share general similarities in appearance, vocalization and behavior.
As I quickly sketched, I noticed that this bird had brownish primary feathers, indicating a certain amount of wear, and a warmer cast to the greater coverts compared to the bluer upper parts. In the case of most North American falcons, wing molt begins once the birds are nesting. Females tend to molt primaries while incubating and males when nestlings are being reared. I also noticed the tail feathers in a bit of disarray and falling short of the folded wing tips. Most male Bat Falcons have wing tips shorter or equal to tail length while the wing tips of females may surpass tail length. However, rain causes feathers to appear out of the ordinary, and I might have been interpreting this bird more than is prudent.
Rain seemed to be slowing by the time I left this Bat Falcon. Now its appearance was changing; its feathers fluffed and its posture enlivened as it commenced preening.
Sketching in the field
I use a telescope and binoculars to do many of my field sketches and paintings of birds. During this trip I carried an assortment of paper, none larger than 14” x 10”, and a couple of small sketchbooks. Because of the wet conditions throughout the trip, particularly in Trinidad’s Northern Range, the paper was always moist or wet, especially after hikes in the rain.
Bat Falcon preening: This was rendered over a watercolor gesture done on site. Pencil and color details were added later that day and the following morning, using sketches from other renderings as reference.
Bat Falcon – various postures and talon details: Most of the watercolor was done on site. Details were added later.
Bottom image: Pencil and ink rendering done on site. Watercolor added that night.
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