Sunday Sketch: Red-Eye Flights

Common swifts are tiny birds with impressive flying abilities. Some individuals are airborne 10 months out of the year. That means even sleeping in flight! They only land for mating and caring for young

Sketch and fact by Amelia Munson

Source: Hedenström, Anders; et al. (September 2016). “Annual 10-Month Aerial Life Phase in the Common Swift Apus apus“. Current Biology26 (22): 3066–3070. doi:10.1016/j.cub.2016.09.014. PMID 28094028.

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