Free-living red-crowned parrots have been adapting so well to urban life in California, Florida, and Texas that their population numbers may rival those in their native Mexico, says a team of US ...

We had a newcomer at our birdfeeder today. It looked like a sparrow, but we thought its head had a touch of red. It was exciting, since our winter birds left long ago. Except for a pair of ...

As adults, the finches develop either red or black heads, a genetically determined trait. The red-headed birds are aggressive, dominant and avoided by others.