House Sparrow (Passer domesticus)
Red Crossbill (Loxia curvirostra)
Male told from Tree Sparrow by grey crown, grey cheeks with no cheek-patch, larger black bib and grey rump. Female rather featureless, and thus not likely to be confused with Tree Sparrow. Confusion with female Scarlet Rosefinch possible, but underparts unstreaked. Profile of House Sparrow differs from Tree Sparrow by larger, less rounded head and less heavy bill.
Sound:Most calls very similar to Tree Sparrow, but lacks said species' distinct high pitched call (chew-itt), and alarm call is less dry and raucous. Song a primitive, monosyllabic, or slightly disyllabic "chilp", hard to distinguish from Tree Sparrow.
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
CCVery similar to Parrot Crossbill, but has thinner neck, smaller head, steeper forehead and slender bill. Upper mandible is less curved towards the tip than in Parrot Crossbill, and the lower is straight, with no bulge. The tip of the lower mandible protrudes from behind the upper (tips of mandibles visibly crossing). The chest is less deep, and birds are not so front heavy. Large individuals may be difficult to identify because of overlapping characters with Parrot Crossbill. Plumage similar to Parrot, with dark wings and tail. Males with rufous red head and body, females green. Juveniles greyish green with streaking. Posture more erect than Parrot Crossbill, especially when foraging on ground.
Sound:Contact call similar to Parroy Crossbill's "tupp", but is on average higher and less powerful, with a "cut-off" ending. In sum: Parrot Crossbill; hard attack, soft ending, Crossbill: softer attack, cut-off ending. Beware regional variations and overlap in pitch of calls with Parrot. The song consist of improvised, resonant twittering, and series of contact calls with no apparent phrases. It is generally faster, with less marked pauses than in Parrot Crossbill, and the phrasing seems more random.
Contact call and song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC