Sandwich Tern (Thalasseus sandvicensis)
Marsh Tit (Poecile palustris)
Large tern with black bill, with yellow tip (adults). Bill all black in juveniles. Long black cap and shaggy crest. Generally leaves a much whiter impression than other terns in the region (except Roseate Tern). Adult summer: Yellow bill-tip. Tail pure white, and upperparts pale grey. Outer primaries darker than rest of wing, and contrast increases in worn plumage. Broad white trailing edge to inner wing. Underside of primaries with faint narrow dark trailing edge. Forehead white in adult winter and first winter plumage. Juveniles: scaly upperparts and dark bill. Less evenly coloured than juvenile Gull-billed Tern. First winter birds similar to juveniles, but back purer grey and bill shorter. Can be mistaken for Gull-billed Tern, but note different profile. Flight powerful with evenly narrow wings and a front-heavy appearance, due to the long head and bill. Often dives from high above the surface and stays under water longer than Common and Arctic T.
Sound:Contact call a sharp and grating "keeree-eek". Often compared to the pressing of amalgam into a tooth.
Contact call:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCGlossy black hood and plain, pale brown upperparts. Cheeks brownish towards nape. Small, rounded, black bib. Small pale spot on base of upper mandible (often surprisingly visible, despite small size). Very similar to Willow Tit, especially British sub.sp. Willow tit has bigger head, not so glossy cap, whiter cheeks, larger bib and pale wing panel.
Sound:Most easily identified by sound. Especially in areas where plumage is less distinct compared to Willow Tit, like in Britain. Most typical call an explosive, sneeze-like "pee-choo", starting high-pitched and ending on a lower note.
Also calls "chaa chaa chaa" but not so nasal and drawn-out as willow tit. Song: A simple one or two note call repeated in series. Usually rising slightly in pitch, and with a "liquid" quality. Sometimes also a ringing, vibrating song. Generally has a much sharper tone than the soft song of willow tit. Other calls: Various high pitched sound. Often quite explosive.
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