Species:

Red-backed Shrike (Lanius collurio)

Black Tern (Chlidonias niger)

Change species:
Main Images:
Length (cm):
17-17
22-24
Wingspan (cm):
24-27
64-68
Weight (gram):
25-35
60-86
Size group:
Thrush-size
Crow-size
Main Texts:
Appearance:

Male with brown back, pinkish white underparts and a bluish grey head with a black eye mask. Female more dull with barred underparts. Juvenile like female, but upperparts also barred . Tail brown with white edges in all plumages. Females and juveniles easily confused with other southern/eastern or vagrant shrikes like; Brown Shrike, Isabelline Shrike, Woodchat Shrike and Turkestan Shrike. Differs from those in white sides of tail, barred rump, mantle and scapulars, scaly underparts and dark or yellowish base of bill (not pink).

Sound:

Call a hard "check check" (like striking two rocks together), and a variable nasal "twee" Song surprisingly varied with many expert imitations of small passerines, interwoven with bell-like ringing and dry chirping sounds. May be confusing and hard to identify if bird not seen. Song not very loud, but phrases can be very long.

Alarm call, 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

Appearance:

Unmistakable in breeding plumage, but otherwise easily confused with other marsh terns. Breeding plumage with black head and belly, but pale underwing and grey rump. When in immature and winter plumage it differs from Common and Arctic tern by smaller size and short, moderately forked tail, and from other marsh terns by slimmer body and wings (compared to White-winged tern), and relatively long, thin bill. Both immature and adult winter show dark front edge of wing, and characteristic dark shoulder patch at wing base. Back is dark in immature birds. Grey rump in all plumages. Flight usually different from Sterna-terns, with erratic dives for no apparent reason, and "aimless" change of direction. Note that when foraging over saltwater, flight becomes more Sterna-like.

Sound:

Moderately vocal. Flight call a more or less clear "kleck, or a disyllabic "klee-ake" with accented first syllable. Sometimes slightly rolling "klirr-eke", but never as much as in White-winged Tern. Also a slightly harsher "kreek", but not as raspy as in Whiskered Tern.

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-sound:Ad Postma, Licence,Link.

Silhouette Group:
Thrush-like
Silhouette
Gull-like
Silhouette
Several different images of the species
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Several different sounds of the species