Despite the name, these invasive birds are not actually sparrows but weaver finches, related to other weavers in Africa and elsewhere. European Starling Starlings, which are from Europe and Asia, ...

It is estimated that the cowbird has parasitized more than 220 different bird species across North America. Because cowbird eggs require a shorter incubation period—and female cowbirds can lay ...

Birdsongs aren’t always beautiful—some are downright hilarious! These five birds have the funniest and weirdest calls in the ...

The common brown-headed cowbird is the most widespread brood parasite in North America. Poly­typic. Length 7.5". A smallish, compact and stocky blackbird with a short and thick-based bill ...

Numerous studies show reproductive losses for individual host species, and therefore it has long been assumed that cowbird parasitism can result in changes in songbird communities. Surprisingly the De ...

The cowbird uses 40 different notes, some so high we can't hear them. The chaffinch may sing his song half a million times in a season. Indeed, British musician David Hindley slowed bird song down ...