Curlew Sandpiper (Calidris ferruginea)
Treecreeper (Certhia familiaris)
Summer plumage: Warm, rufous brown below like Knot, but much smaller. Bill curved and much longer, and appearance more long-legged. Winter and juvenile plumage grey above and pale below. Differs from Dunlin in slightly longer legs and bill, more pronounced supercilium, no black patches on belly (some rufous summer feathers may show when moulting) and more upright stance. Juveniles with buff-pinkish tone to breast, and scaly upperparts. Always distinct in all plumages when flying, due to bright white and crescent-shaped rump-patch.
Sound:Flight call a soft, ringing and rolling "krrrrrt, with variations. Lacks the hoarse, nasal quality of similar call by Dunlin.
Contact call:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-photo:Agustín Povedano, Licence,Link.
CC-photo:Ian N. White, Licence,Link.
Sounds:Creative Commons,www.xeno-canto.org ,Albert Lastukhin,http://creativecommons.org/licenses/by-nc-sa/4.0/
Unmistakable, except in areas where it coexists with Short-toed Treecreeper. Differs from said species in pure white flanks (sub-species macrodactyla has faintly buff flanks but not as marked as in Short-toed), shorter and only moderately curved bill, hind-claw as long as hind-toe and "notched" wing-bar (uneven "steps"). Tips of primaries with buffish/white tips/fringes extending along inner web. Mostly distinguished from Short-toed by call, and identification exclusively by plumage characters difficult in areas where both species occur.
Sound:Contact call a drawn, high-pitched "tzreeee". Similar to Goldcrest in timbre, but of longer duration with a vibrating and slightly rolling tone. Generally repeated in evenly paced, slow series (unlike Goldcrest). Song a short, continuous three-part phrase. Each phrase starts with a few contact call-like notes followed by a Willow Warbler-like descending part, which then jumps to a few descending high notes to form a marked conclusion. Note that "mixed singers" are not uncommon in areas where both species of treecreepers occur.
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC