10,000 Birds
DECEMBER 22, 2022
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. Poor researchers Nicola Coumi and Rob Slotow failed to find anything particularly interesting about vigilance in Bronze Mannikin groups. ” I wish I had this kind of optimism.
10,000 Birds
JULY 21, 2014
And with no natural predators or resistant trees in their adopted territory, things have been looking pretty grim. This research suggests that the boom isn’t due to an influx of newcomers, but rather because more local birds are flourishing and successfully rearing families. Enter the woodpecker.
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10,000 Birds
APRIL 2, 2019
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. In some species accounts, notably Song Sparrow, this text reads as a carefully researched, finely detailed ornithological/historical essay.
10,000 Birds
NOVEMBER 3, 2015
It’s probably on your mind too, especially if you live in the United States. Each account gives population estimate, population trend, estimated area, endemism level, reasons why the species is threatened, and conservation measures adopted and proposed. Cuba is on my mind. 26 endemics! by Nils Navarro.
10,000 Birds
NOVEMBER 14, 2017
The Hawaii vote made it clear that that the ABA Area is about political borders, not geographical or ecological ones, and the two Caribbean territories have long been part of the United States. The absence of the Caribbean means that ABA Area—and the ABA—excludes important aspects of the avian diversity of the United States.
10,000 Birds
NOVEMBER 1, 2013
But one that hasn’t been widely adopted, at least in the United States, is avian radar, according to a recent New York Times op-ed. Another researcher, from the University of Illinois, asserts that the bugs need to be worked out of these systems before they’re cleared for widespread use.
10,000 Birds
JULY 22, 2014
The majority of wildcats live today in Africa, and virtually none of them have provided the DNA from which supposed histories of domestication have been constructed by researchers. Here we conduct a systematic review and quantitatively estimate mortality caused by cats in the United States. billion birds and 6.9–20.7
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