Arctic Warbler (Phylloscopus borealis)
Mistle Thrush (Turdus viscivorus)
Like a large Willow Warbler, with distinct dark eye-stripe. Supercilium marked, but narrow. Starts at base of bill, continuing far behind eye. Wing-bar distinct on greater coverts, and sometimes on median coverts too. Primary projection long. Bill long and relatively heavy with orange base. Flanks often slightly grey, and throat sometimes with faint streaking. Appearance robust, but elegant. Moves faster and with more confidence than congeners.
Sound:Call and song diagnostic. Song a rattling series of 20-30 single syllables. Repeated as a monotonous phrase in stable pitch, lasting 2-4 seconds. Starts more softly with volume rising throughout each phrase. Contact call equally unique. A hard and short "tsrrt", recalling contact call of Dipper. Often given as introductory part of song.
Song (two variants) and calls:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCA large, and often shy, thrush. Most similar to Song Thrush. Other than size, it is distinguished by a long tail with white corners, white under wing-coverts and a pale, vertical cheek patch. Underparts are boldly covered in round (not arrow-shaped) spots that forms a dark patch on each side of upper chest. Rump slightly paler than the olive back. Noticeably bulkier than Fieldfare, with a heavier bill. Posture upright when foraging on ground, and head seems paler than the back. Flight non-undulating, but with alternating bursts of wing-beats and glides with folded wings. Often flies high.
Sound:Song loud, far reaching and melodic. Most similar to Blackbird, but pitch is higher, phrases shorter (3-6 notes) and most notably, pauses between phrases are much shorter. All which gives the song a much more hurried feel than that of the Blackbird. Timbre is thinner and slightly shivering, and tonal range more limited. May have recurring favourite motifs, but does not repeat phrases like Song Thrush. Sometimes adds higher pitched parts and imitations. Other calls; a dry rattle, likened to the sound of a piece of wood drawn over a coarse comb, and a Fieldfare-like "chuck".
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
CC