Tuesday, January 31, 2012
More paintings
Friday, January 20, 2012
Painting Dump
Wednesday, January 18, 2012
Andean Cock of the Rock
Today I saw lekking Cock of the Rock. Due to drenching rain, there was no camera at the ready to document this experience, but I hardly need a camera to remeber such a spectacle of evolutionary insanity. The birds can be heard from a couple hundred meters away as they scream and hop about in their brilliant red-orange plumage. They chicken sized and dazzlingly colored, yet hard to find amidst the dense foliage. Once you find them, however, it's hard to lose them. They are simply, strikingly impressive.
Friday, December 23, 2011
Monday, December 19, 2011
Monday, December 5, 2011
Grasshopper Sparrow
The grasshopper sparrow was the last bird I saw upon leaving Veracruz, and this painting is based off of sketches I did at the time. They are another secretive grassland species, but nothing in comparison to the Botteri’s Sparrow. They are more associated with species of bunchgrass, so can be seen a little more easily as they skitter around.
On the whole, the Grasshopper Sparrow is pretty common, although like most grassland specialists declining. There does exists an endangered resident subspecies of Grasshopper Sparrow that lives in Florida. It is interesting to note that this Florida population has a large degree of genetic variability (according to Bulgin et al’s paper Ancestral polymorphisms in genetic markers obscure detection of evolutionarily distinct populations in the endangered Florida grasshopper sparrow,) and the group’s genetic distinctness is muddy at best. This means that their status as a subspecies is based on (admittedly well-defined) morphological and behavioral characteristics. This is a departure from the current standard of a purely genetic standpoint of what makes a distinct population, and it pleases me to see this. In my mind, there is more that makes a species that genetic markers.
Sunday, December 4, 2011
Botteri's Sparrow
Although this was written in 1959, it seems to remain the case. This species continues to fly under the radar of many Mexican birders (that is to say, birders in Mexico.) Although their distribution extends from the southern US to Central America, and their chosen tall-grass habitat is (relatively speaking) ample, few of my friends have ever heard of this species. Looking at eBird data shows the same - sightings are few and scattered. There is no reason to believe that this bird is particularly threatened, as they are able to thrive in non-native grasslands according to Jones and Bock’s paper The Botteri’s Sparrow and Exotic Arizona Grasslands: An Ecological Trap or Habitat Regained? They are simply hard to find. It is solitary and shy species that rarely emerges from low in the grass except to sing. As such, it’s a species that draws my personal attention.
Song Sparrow
If you take a quick look at the song sparrow range map (the one that shows all of North America, not just the supposed North America that only includes the US and Canada,) you will notice something interesting. There is a contiguous population across the bird-guide version of North America and then a little island of sparrows alone down in Mexico. Geographic isolation usually means genetic isolation, and so it happens to be. Sometimes it’s nice to have different parts of my life connecting, and it was nice to find that the sparrows I was pondering down in Veracruz happen to be the same birds my professor, Bob Zink, from the U of M published about many years before. http://www.jstor.org/pss/2410178
Saturday, December 3, 2011
Worthen's Sparrow
Friday, December 2, 2011
The almost endemic bird of Veracruz
The Veracruz Rufous-naped Wren is an endemic subspecies to the coastal dry forests of central Veracruz. This population happens to be it's own disjunct population and may well be considered it's own species in the future. Thusly, when considering a bird to paint that would be representative of where I have been living, this was the (sub)species we came up with.
Saturday, November 26, 2011
The RAREST bird
Veracruzano Highlands
Friday, September 16, 2011
Pesticide
Thursday, September 15, 2011
A couple of entries for my eventual video field guide to birds of prey
Sunday, September 11, 2011
A Blast From the Past
Saturday, September 10, 2011
Wednesday, September 7, 2011
Rescue Mission
The other day we received a call from Suffield Base range control. They called to provide us with the UTM coordinates of a injured hawk that was found on the base. From their very vague description it sounded like a Swainson’s Hawk, and it sounded bad. I immediately went to go look for him.
When I got there, this is who I found below the flare stack of a gas plant. I was so relieved to see that the sum total of the Swainson’s injuries were just a set of badly burned flight feathers. After hanging out in my garage for several days sharing Cecil’s food, the little guy was delivered to the Edmonton Wildlife Rehab Center six hours away for a new set of feathers.
Replacing flight feathers is surprisingly easy, and falconers have been doing it for well over a thousand years. Rather than waiting a full year for new feathers to grown in or risking a total alteration in the bird’s molt cycle by pulling the damaged feathers out, a person can do what is called imping. You simply cut the damaged feather low along the shaft, leaving a little bit at the bottom, and then find a corresponding flight feather from a dead bird or a previous molt and cut it at the same point as the old feather. Using a small piece of bamboo placed in the hollow tube of the feather shafts, you can connect the old and ‘new’ feathers with a dab of five minute epoxy. This new imped feather will work just as the old one did, and it will molt just as the old one would have, because technically it is still there.
That means that this Swainson’s can be released before the migration season starts, and he can make through Veracruz and down to Argentina with all the others.

















