Appearance:

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

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC

Collage 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.

Appearance:

Large and long-tailed bunting with rufous rump. Mainly yellow and brown plumage. Head bright yellow with dark markings in breeding male. Female darker, with streaked head, yellow throat and supercilium. Back greyish and streaked . Rufous rump distinguishes it from Ortolan and Cirl Bunting. Underparts pale yellow, with relatively coarse streaking.

Sound:

Distinct contact call: A short and brittle "zeet", rich in harmonics. Song a series of 6-8 (or more) slightly ascending "tze" 's, rising in volume and ending on a sustained note, which may be lower or higher than the others. Often rendered as "little-bit-of-cheese-and-no-bread". Last note is often omitted, which may lead to confusion with Cirl Bunting. Timbre with prominent harmonics as in other bunting songs.

Song:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:BiteYourBum.Com Photography, Licence,Link.