Scottish Crossbill (Loxia scotica)
Goldfinch (Carduelis carduelis)
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.
Plumage stunningly colourful. Adults easily recognized by red face boldly framed in black and white. In all plumages; black wings with broad yellow panels, forked tail with white patches, and flashing white rump. Bill fairly long and pointed. Juveniles lack the red, black and white head, and are best identified by the contrasting wing-panel and white rump/tail patches. Light and bouncing flight, with bursts of wing-beats and variable acceleration.
Sound:Contact-call distinct, and also constitutes a major part of the song. A sharp and explosive "witt", or "tzee-witt". Sometimes given as a single syllable, di- or trisyllabic, or as continuous series. The song is comprised of rapid series of the contact call, interrupted by drawn-out melodic notes and trills. Other calls: A harsh budgerigar or house martin-like "trrrtt-trrrrt".
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Edmunds Racinskis