Eggs Science Sparrows 
10,000 Birds
JULY 20, 2023
And for the first time, I saw a Bronzed Cowbird (which lays its eggs in other birds’ nests) checking out one of these nests. Two weeks later, it was a young math and science teacher from Oregon named Brent who asked me to take him with me. I know this photo isn’t very helpful, but there are four Motmots in that one tree.
10,000 Birds
AUGUST 3, 2021
”* And then, my bird club friends started talking about alternate warbler songs and sparrow dialects and I thought, “Really? And, that sparrow I heard in California that sounded so different really is a Song Sparrow?” Bird communication is a complex and evolving science.
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10,000 Birds
NOVEMBER 10, 2022
Of course, it is hard to resist looking at a paper titled “Host personality predicts cuckoo egg rejection in Daurian redstarts” Basically, the personality of a female redstart (bold or shy) predicts the responses to parasitic eggs – bold hosts are more likely to reject parasitic eggs.
10,000 Birds
AUGUST 22, 2022
While this is a very charismatic bird, the Southern Grey-headed Sparrow emphatically is not. On Quora , one question asked (presumably not by a sparrow) is “What does he mean by I have a beautiful soul?” ” This sparrow does not want to hear it has a beautiful soul.
10,000 Birds
NOVEMBER 6, 2012
This led to a correspondence with Spencer Fullerton Baird, then assistant secretary of the Smithsonian, the mentor of many naturalist/scientists of Ridgway’s generation, himself a disciple of John James Audubon, and, yes, the Baird of Baird’s Sparrow. Baird, Brewer, Cory, Bicknell, and Worthen all make appearances. It’s challenging reading.
10,000 Birds
JULY 6, 2023
In the slightly frighteningly named journal “Science of The Total Environment”, there is a paper on organochlorine compounds in Purple Heron eggs nesting in sites located around a chloralkali plant (Ebro River). Summary result: relevant chemicals emitted by the plant can be found in the eggs.
10,000 Birds
AUGUST 4, 2018
Donna was first amongst beats to reach North Dakota and brought the number of Lower 48s to 32, adding Sharp-tailed Grouse , Sprague’s Pipit and LeConte’s Sparrow to the life list. LeConte’s Sparrow – Ammodramus leconteii. Baird’s Sparrow – Ammodramus bairdii. Still all mainland though.
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