Branding Chickens Eggs Species 
10,000 Birds
JUNE 1, 2021
Pough “with illustrations in color of every species” by Don Eckelberry, Doubleday, 1946. The National Audubon Society Birds of North America covers all species seen in mainland United States, Canada and Baja California. The press material says it covers over 800 species, so you know I had to do a count.
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.
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