10,000 Birds
DECEMBER 6, 2016
Peterson Field Guide to Birds of Northern Central America covers 827 species, including resident, migratory, and common vagrant birds. The end result is that the whole “biographic” area (NCA plus southern Mexico and northern Nicaragua) is home to 41 endemic bird species.
10,000 Birds
SEPTEMBER 1, 2015
But getting a grip on gulls can be rewarding, and even within a large group of seemingly drab-colored, dump-loving trash eaters, there are spectacular species, like the dramatic Sabine’s Gull, the nearly mythical Ivory Gull, and easily one of the most sought-after species in North America, the mysterious Ross’s gull. (p.
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10,000 Birds
JANUARY 24, 2022
This is the sort of issue that the ABA should have a template for comments that could be adapted for a specific site. The ABA has sporadically commented on proposed regulations, but it should develop a more formal process to comment on issues such as the Migratory Bird Treaty Act , the Endangered Species Act , the Duck Stamp , and others.
10,000 Birds
MARCH 6, 2023
Shockingly, the Ashy-throated Parrotbill apparently is a species heavily hunted for bird fighting in Guizhou Province, China ( source ). Apparently , they use the presence of their own eggs as a cue for recognizing parasitic eggs – so without the presence of their own eggs as a template they fail to recognize a parasitic egg.
10,000 Birds
APRIL 21, 2011
So defined, bird songs are the sounds, often but not always loud and musical, that (mostly) male birds make as part of that species’ mating system. The templates can be discovered by raising birds in the absence of adult song, and they often sound very little like the normal final product. But the same is true of the song itself.
10,000 Birds
AUGUST 4, 2020
I think each represents a template of a specific way of approaching this subject. Each activity builds on these basics–observation, documentation and action–introducing concepts like migration, nesting, and conservation, and also teaching specific ways bird behavior may be different for different species.
10,000 Birds
MARCH 5, 2024
In the introduction, Hart and Datta delineate the many steps involved, starting with drawing on a large stone with greasy crayon and ending with colorists hand-coloring based on Elizabeth’s template (with John Gould checking the proof between printing and coloring).
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