After surviving a likely gunshot wound in July, a bald eagle in Missouri is showing an important sign of recovery–keratin ...

Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.

Speaking of common birds with red beaks, we can’t leave the blood-shot Northern Cardinal unmentioned ... the Java Sparrow has an unmistakable profile. The beak’s pigmentation is darker ...