If you have backyard bird feeders, you might want to be on the lookout for some new visitors this season. This is the time of year when longtime Michigan birdwatchers hope to catch a glimpse of the so ...

I remember looking out at the birdfeeder and seeing it crammed full of evening grosbeaks — large, black-and-yellow finches with large bills. They reminded me of big wasps, in a way. They would show up ...

Our last column focused on Juncos. This week, we will focus in a lesser manner on two other feeder birds, the black-capped chickadee and the more recent addition, the house finch. Let us begin with ...

If you have a bird feeder in the continental United States, you have almost certainly been visited by house finches. On both sides of the Mississippi their hungry flocks coat feeders like displays of ...

If you've ever seen an Australian finch, you know that it has a brightly colored red, orange, or yellow bill. But how and why do these birds develop one color over another? A new study has revealed ...

When red-billed and yellow-billed finches mate, their offspring have orange bills. By studying the exact shade of orange in ...

Carotenoids are the underlying pigment for much of the enormous variety in color found across birds and form the basis for the colors red, yellow, and orange. In a study published in Current Biology, ...

Lesser goldfinches are common in and around Santa Fe in the summer months. It’s not uncommon to see these small, yellow finches in the winter, as we are just on the northern edge of their winter range ...

This is a preview. Log in through your library . Abstract Recent sexual selection studies on the evolution of bird colouration have mainly focused on signals with a high level of condition-dependent ...