Short-eared Owl (Asio flammeus) -> Willow Warbler (Asio flammeus) - BirdID's Bird Guide - Nord University

Species:

Short-eared Owl (Asio flammeus)

Willow Warbler (Phylloscopus trochilus)

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Boreal Owl

Chiffchaff

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Long-eared Owl

Yellow-browed Warbler

Length (cm):

37-39

10-11

Wingspan (cm):

95-110

16-22

Weight (gram):

260-420

7-12

Size group:

Crow-size

Warbler-size

Main Texts:

Appearance:

A medium sized owl, which can give a very pale impression in flight. Quite similar to a Long-eared Owl with folded tufts, but differs in bright yellow eyes, darker wing-tips and heavily streaked breast in contrast to pale belly.

Sound:

Song: a series of 6-10 deep "ho"s evenly spaced. Much faster than long eared owl, and rising in pitch until the final "ho". Calls: a raspy, drawn, mewing "eeeeeeeeeah" (about 2 seconds), rising in pitch with accented ending.

Song:

Error loading Flash for sound!
See sound file

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Lauri Hallikainen, Licence,Link.

Appearance:

Olive green upperparts, yellowish chest with gradual transition to off-white belly. Very similar to Chiff-chaff, and most field characters are subtle and often hard to see. Distinguished by (usually) pale, yellow-brown legs, dark framing to ear-coverts, stronger supercilium. Long primary projection (often 3/4ths the length of tertials) with irregularly spaced tips (visible when wing folded). Wings slightly more pointed than in Chiff-chaff, and not so fan-shaped. Juveniles often with whole underparts yellow. Frequently flicks tail, but not sideways (unlike Chiff-chaff). Generally also more calm when moving among the foliage.

Sound:

By far most easily identified by it's call or song. Contact/alarm call a soft, plaintive ascending "hoo-eet". Similar to Chiff-chaff, but first part more drawn, giving it a disyllabic feel. Song: A 3-5 second, falling phrase of soft, rippling "svi-svi" sounds, starting high with some attack, and then falling in a mellow manner. The phrase lacks any conclusion, and diminishes both in strength and tempo.

Song: