Scientists estimate the male northern cardinal’s genetic mutation that makes it yellow also makes it a 1-in-10 million bird ...

Just before Christmas, two backyard birders in Michigan were in for the ultimate surprise–a yellow Northern Cardinal. Arlene ...

Yellow-headed birds often stand out amongst the foliage, catching our attention even when they are only there for a flash!

The couple said the yellow bird is causing quite a stir online after ... mutation” – a missing element in the DNA sequence. “All it takes is a mistake in the DNA that codes for that protein, ...

These are probably the best known and most frequently encountered wood warblers. Although variable, all yellow-rumped warblers possess a bright yellow rump, which is shared with only 2 other species.