Gay dating new york birdwatching

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Birds, especially those in the southern continents, survived this event and then migrated to other parts of the world while diversifying during periods of global cooling.Many of these early "stem-birds", such as Archaeopteryx, were not yet capable of fully powered flight, and many retained primitive characteristics like toothy jaws in place of beaks, and long bony tails.Birds are descendants of extinct dinosaurs with feathers, making them the only surviving dinosaurs according to cladistics.

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Birds are the closest living relatives of crocodilians.

Other species have breeding systems that are polygynous (arrangement of one male with many females) or, rarely, polyandrous (arrangement of one female with many males).

Birds produce offspring by laying eggs which are fertilised through sexual reproduction.

Songbirds, parrots, and other species are popular as pets.

Guano (bird excrement) is harvested for use as a fertiliser. About 120–130 species have become extinct due to human activity since the 17th century, and hundreds more before then.

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