Birds like northern cardinals, rose-breasted grosbeaks, evening grosbeaks and purple finches have thick, short beaks designed for breaking open seeds with ease. The next time a bird lands at your ...

This can hamper the growth of young birds. In this way, both body and beak size would decrease after hot temperatures due to stunted growth as food gets more scarce. And in short-term periods of ...

The study compared the DNA of more than 3,000 birds in the UK and the Netherlands and established "genetic differences" in terms of beak lengths. Differences evolved over a short period and could ...

The birds have been named for Darwin ... the ground finch has a short beak adapted for eating seeds buried under the soil, and the tree finch has a parrot-shaped beak suited for stripping bark ...