Thin and long tailed, with outer tail feathers almost entirely white (tail from below looks white). The bill is thin and pale gray ... Farther north migration starts mid-August, with peak mid ...

A fairly recent arrival to North America ... variation will occur. The tail is fairly long and blunt-ended. Adult male: the head is an unmarked, pale buff-gray, while the upperparts are a darker ...

The tail comprises about one- third of this length. Weight varies from 3.2-6.4 kg (7-14 lbs); males are slightly heavier than females. The range is from the northern tip of South America ... of fruit ...

You've probably heard of invasive plants, but what about invasive birds? These common nonnative species are now abundant in ...

The bushy, 18-25 cm (7-10 in) tail, which is about half the total length of this 48-51 cm (18-20 in) rodent, is made up of long, wavy hairs ... of the eastern half of North America provide optimum ...

Here’s a closer look at two commonly found North American species—the gray fox and ... From tip to tail, both species of foxes measure between 31 to 44 inches long and weigh between 7 to ...