Scottish Crossbill (Loxia scotica)
Rock Pipit (Anthus petrosus)
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.
Dark (or brownish) legs and dark bill (in summer). Diffuse, but heavy streaking below, gives underparts a smoky appearance. The whole bird appears darker than other pipits. Outer tail feathers greyish white. Underside of wings dark. Bill noticeably longer and heavier than in Meadow Pipit. Breeding plumage has less streaked underparts, lighter grey upperparts and pink tinge to chest. Very similar to Water Pipit.
Sound:Song very similar to Meadow Pipit but much louder. Starting notes often with masked double accents, giving it a hammering tone. Terminal trill stronger and more pronounced. Flight call a very sibilant, rippling "weesst", more drawn than in Meadow Pipit. Usually given as clearly separated single calls, but sometimes in quick successions like M. Pipit. Alarm call a sharp "tseet". All sounds very similar to Water Pipit.
Song, contact call, song:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Michele Peron, Jarek Matusiek,http://www.xeno-canto.org ,CC license