Yellow Wagtail (Motacilla flava)
Treecreeper (Certhia familiaris)
Highly variable with many subspecies in different regions. Upperparts mainly grey and greenish, underparts yellow. Tail quite short compared to other wagtails, and the whole bird in profile is not unlike a pipit. Smallest wagtail in the region. Some birds are very pale below, head markings are very variable, depending on subspecies. Hybrids are not uncommon. Differs from Grey Wagtail in dark legs, only pale yellow vent and narrow wing-bars. Juvenile White Wagtails and Yellow Wagtails can be confused, but White Wagtail is greyer, with big grey breast patch (Yellow Wagtail may show narrow breast band). Closest congener is Citrine Wagtail, which lacks dark lore, has broad wing-bars and grey back.
Sound:Contact call characteristic and widely used; a sharp, drawn out "pseeeoo" with an accented ending falling in pitch. Song primitive and less striking. A variable phrase with two or three notes resembling the contact call in timbre. Beware differences in calls and songs between different subspecies.
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
CCUnmistakable, 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