Adoptable Breeding Groups Species 
10,000 Birds
JULY 15, 2021
Having that in mind, it is no small miracle that Colombia still has 1965 bird species left to be covered by this guide – more than any other country in the world. Among them are 94 endemics and 101 near-endemics, 4 introduced species and only 42 vagrants. Also, the distributions of subspecies breeding in the region are clearly mapped.
10,000 Birds
SEPTEMBER 8, 2023
An associated issue is that the Belize and Costa Rica guides share many of the same descriptions of species, written by Howell. Similarly, descriptions of species repeated across volumes do not lose their accuracy with each publication. Other species are splits and lumped and have had their names changed. Why are these issues?
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10,000 Birds
DECEMBER 22, 2022
It is not particularly big but has a reported 430 bird species including migrants, though during my short stay it seems I missed most of the key attractions among them. In three cases of adoption the common factor was that the adopting individual was sexually attracted to one of the real parents of the young.
10,000 Birds
DECEMBER 26, 2022
This is a rather photographer-friendly species, staying on the same branch for quite a while and even returning to it after catching some insects – you can see this on video here and here. While the source does not say so directly, it hints that this means the species is not as intelligent as Eurasian Magpies (which pass the test).
10,000 Birds
MAY 5, 2020
A Field Guide to the Birds: Giving Field Marks of All Species Found in Eastern North America was published in 1934 by Houghton Mifflin (note–Peterson was 26 years old), after being rejected by four publishers. Adding the 76 new species in the Hawaii section, this makes coverage of approximately 884 species.
10,000 Birds
MARCH 17, 2013
New World populations of the widely distributed Sandwich Tern ( Thalasseus sandvicensis ) are treated by some authorities (including the British Ornithologists’ Union) as a distinct species: Cabot’s Tern ( T. Proposal 2013-A-3 recommends adopting that split on the basis of a 2009 study (I wrote about it back in the day here ).
10,000 Birds
APRIL 2, 2019
I like observing them, reading about them, grappling with species and subspecies identification, and even—on a good day—talking about sparrow taxonomy. Peterson Reference Guide to Sparrows of North America covers 61 species of the New World sparrow family Passerellidae that breed in Canada, the United States, and northern Mexico.
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