Grey-headed Chickadee (Poecile cinctus)
Sandwich Tern (Thalasseus sandvicensis)
Like a Willow Tit with dark brown hood, brown back and warm brown flanks. Fluffy overall look, with very large dark bib. Summer plumage often looks "newly washed" and untidy. Tail slightly longer than in Willow Tit, and flight is less undulating. Not shy.
Sound:Voice quite similar to Willow Tit. Song: Often vibrating or rasping notes repeated in Willow Tit-like structure, gradually falling in pitch "trrrrrr trrrrr trrrrr". Call: Nasal Willow Tit-like "chee chee chee" , "ti ti chee". Other sounds: Chirping, bubbling sounds resembling Willow Tit, various other high pitched sounds.
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
CCLarge 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
CC