Scottish Crossbill (Loxia scotica)
Hobby (Falco subbuteo)
Only in the UK. Similar to Red and Parrot Crossbill in plumage. Bill size possibly the only visual identification clue, but even this overlaps with the other two species. Bill is usually deeper and heavier than Red Crossbill. Certain separation from Parrot Crossbill in the field by visual characters alone, probably not possible. Species status mainly upheld by isolated breeding population and differences in excitement calls from other crossbills. Calls probably play an important role in maintaining the reproduction barrier between Crossbill populations with different bill-size. See Birdlife link below for more info.
Sound:Calls very similar to Parrot Crossbill, and sonogram analysis may be needed for certain identification. Flight and excitement calls show most unique quality. Sonogram image above by Ron Summers (used with permission). A detailed article about crossbill calls can be found here.
Distribution:Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCollage photo By Richard Crossley (The Crossley ID Guide Britain and Ireland) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons.
Small and very elegant falcon, with white throat and rufous thighs (adults). Long, narrow wings and medium long tail. Dark grey above and heavily streaked below. Head dark, with marked facial pattern resembling Peregrine. Tail often looks slightly wedge-shaped. Impressive speed of flight, with acrobatic skills when hunting. Often hunts flying birds high in the air. Slower flight action when hunting insects. Will glide, but seldom hovers (as opposed to Red-footed Falcon). Perched birds shows wing-tips reaching end of tail.
Sound:Varied, but not very vocal. Calls when courting and at breeding ground. Most common sound a high-pitched "tew-tew-tew". Similar to Wryneck, but less pleading. Also a sneezing "ktcho".
Call:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-photo:markkilner, Licence,Link,
Sounds:Recorded by Harry Lehte,http://www.xeno-canto.org ,CC license