Species:

Pomarine Jaeger (Stercorarius pomarinus)

Woodchat Shrike (Lanius senator)

Change species:
Main Images:
Length (cm):
46-51
18-18
Wingspan (cm):
125-138
26-28
Weight (gram):
600-900
30-40
Size group:
Crow-size
Thrush-size
Main Texts:
Appearance:

Pale and dark morphs. Often difficult to distinguish from Arctic Skua. Adults with broad, spoon-shaped streamers. These are moulted twice a year, so adults lacking these are not uncommon. The dark cap reaches around the bill base and down to the chin. Breast band in pale morph is generally broader and more pronounced than in Arctic Skua, but in some males it is lacking altogether. Leaves an overall more robust and powerful impression than Arctic. Wings are broader than the distance from trailing wing-edge to tip of tail (streamers excluded), while the hand seems shorter. The light patches at the base of the primaries are more obvious, and many young birds shows a characteristic double patch, formed by additional white base of greater primary coverts (like Lesser Spotted Eagle). Rump and vent of juveniles usually boldly barred, in contrast to unbarred back and belly (visible even in dark morph). Streamers never pointed (in any plumage). Flight pattern straighter, and more determined than in Arctic Skua.

Sound:

Short "kea" or "ke", and various mewing calls, usually deeper pitched than Arctic Skua. Also a characteristic, laughing and vibrating "kayayayayaya", heard mostly on breeding ground.

Alarm/flight call:

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-photo:loarie, Licence,Link.

CC-photo:jerryoldenettel, Licence,Link.

Sounds:CC. http://www.xeno-canto.org .Recorded by Andrew Spencer.

Appearance:

Adults easily recognized by rufous cap, black back, white scapular patches and white rump. Appears more compact and bigger headed than Red-backed and Lesser Grey Shrike. White spot at base of bill larger in female than in male. Immatures told from Red-backed Shrike by whitish scapulars, greyer upperparts, diffuse patch at base of primaries, pale rump and dark brown tail. Young birds may also be confused with Masked shrike, but note less contrasting primary patch, darker forehead, browner upperparts and wings, pale rump, shorter tail and deeper bill. Subspecies L. s. badius lacks primary patch. More skulking than many shrikes. Likes high viewpoints.

Sound:

Alarm call a dry, magpie-like "che-che-che-che-che", or a nasal, ascending oriole-like "weea". Territorial song loud and varied. Often repeats phrases and includes mimicry. Alternativ song a more continuous chattering with impressive mimicry similar to Red-backed and Lesser Grey Shrike, and difficult to separate from those.

Song:

Error loading Flash for sound!
See sound file


Distribution:

Xeno-canto: map

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:Michele Peron, Licence,Link.

CC-photo:Hans Verdaat, Licence,Link.

CC-photo:marco van der velde, Licence,Link.

Silhouette Group:
Gull-like
Silhouette
Thrush-like
Silhouette
Several different images of the species
ImageImageImageImageImageImageImageImage
ImageImageImageImageImageImageImageImage
Several different sounds of the species
Error loading Flash for sound!
See sound file
Error loading Flash for sound!
See sound file