Alpine Swift
Apus melba
(L 7.9-9.1" WS 22" Wt 3.5 oz)
About twice the size of most other swifts
...roost on vertical cliffs or walls...in moun-
tains from south Europe to the Himalayas.
Can stay aloft in the air for
more than 200 days straight.
    (Liecht et al., 2011)
Trigrad Gorge
Bulgaria
22May2015