Pigeons are deterred by certain colors they perceive as threatening or unsettling, such as reflective or metallic shades like ...

In addition, successful urban bird species have more elaborate colors in their plumage, which is especially true for females. Cities seem to favor more colorful birds—probably because there are ...

I made many diary entries about birds that I had seen returning from their migrations. In the morning when I step outside, I hear the singing of robins, cardinals, doves, crows and more, and all are ...