W e all have opinions on the best ways to feed birds.But we can all agree on one thing: The greater variety of birds, the better. Serve up black oil sunflower seeds, also called oilers, and you ...

There were rumors that the African tigerfish could catch and eat flying birds, but it hadn't been proven until now. By Douglas Main Published Jan 13, 2014 8:28 PM EST Get the Popular Science daily ...

Animals often share food, but these birds understand that metal rings can be exchanged for treats, and they share the rings with no promise of reward Katherine J. Wu - Correspondent January 9, 2020 ...

The African grey parrots with the tokens didn’t get any immediate benefit: only very rarely did the bird getting food give any to the bird giving them tokens. Current Biology DOI: 10.1016/j.cub ...