A fascinating new study has revealed that female chickadees are very fussy when it comes to selecting a father for their ...

Relationship dynamics among birds can be just as complex as they are in humans. While some bird species stick with one partner for life, new research has shown others might switch partners after just ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The world's oldest known wild bird has returned to her nesting grounds ...

Meet the Picathartes, a bird species that resides in the Congo and has done such for more than 44 million years. These birds mate for life, and in order for their relationship to work, both the male ...

Female mountain chickadees seek extra-pair mates with sharper spatial memory than their partner, boosting their chicks' survival odds.

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How far would you go for a summer love? Across an ocean? Over a continent? How about both? For Lindsay and Katakturuk, their yearly meetup in the Arctic each summer means a journey north from Colombia ...

PHOENIX (AP) — Minutes after getting to a park in the middle of Phoenix, you can see flashes of green in the sky and hear chatter because love is in the air — or at least, the lovebirds are. The small ...