Cook's swift: Difference between revisions

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'''Cook's swift''' ('''''Apus cooki''''') is a small [[bird]], superficially similar to a [[house martin]]. It is, however, completely unrelated to those [[passerine]] species, since [[Swift (bird)|swift]]s are in the order Apodiformes. The resemblances between the groups are due to [[convergent evolution]] reflecting similar life styles.
 
These birds have very short legs which they use only for clinging to vertical surfaces. The scientific name comes from the [[Greek language|Greek]] απους, ''apous'', meaning "without feet". They never settle voluntarily on the ground. Blyth's swifts spend most of their lives in the air, living on the insects they catch in their beaks.