I’ve been noticing more than one ruby-throated hummingbird at my feeder recently. Two, sometimes even three, sharing the feeder. None of these have the ruby-throat of an adult male. So, these are ...

It may contain inaccuracies due to the limitations of machine translation. 20% of Female White-Necked Jacobins 'Disguise' as Males in Social, Not Sexual, Selection 20% of female white-necked jacobins ...

Let’s get one thing out of the way: All hummingbirds fight. Most species fight for food, using their tiny bodies and sharp bills to force competitors away from flowers. But the green hermit ...