The bare winter tree limbs reveal what busy neighborhood squirrels have been building during the summer months. Squirrel nests! Squirrels are clever engineers. Squirrel nests are created by the ...

Not every nest in trees is a bird nest! Here's what a squirrel nest looks like and how to deter squirrels from nesting in your yard.

A gentleman from Andover witnessed, and well described, the behavior or a pair of gray squirrels gathering leaves in fall to build a nest together. Never having seen this process, I have always ...

The results supported the contention that snake skins deter flying squirrels from entering a bird nest and eating the eggs. None of the 40 nests with snake skins were attacked.

None of the 40 nests with snake skins were attacked. Flying squirrels ate eggs in 20 percent of the nests without snake skins.

Could the snake skins serve as a deterrent to would-be egg predators? And why do some birds incorporate bits of litter into their nests?