Red-necked Nightjar (Caprimulgus ruficollis)
Blyth's Reed Warbler (Acrocephalus dumetorum)
Told from Common Nightjar by evenly broad pale bands on coverts, no dark leading edge of wing and rufous necklace all around nape. Underparts more rufous than C. Nightjar, and white throat-patch larger. Sexes are very similar, and both show white patches on wings and tail. Larger than C.N. and with experience possible to identify in silhouetting flight by it's larger head and longer tail.
Sound:Female calls with rasping series of "eech-eech-eech-eech". Flightcall resembles C.N. Song very diagnostic, and not likely to be confused with any other sound. May be described as a fairly deep and resonant knocking, with a steam-engine-like rhythm; "ko-tok, ko-tok, ko-tok, ko-tok ".
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
CCCC-Photo:Hans Verdaat, Licence,Link.
Similar to Reed Warbler but note very short primary projection, evenly coloured wings with dull tertials. Under tail-coverts almost white, with very little buff tinge. Legs overall darker than congeners. Immature birds with slightly paler legs and warmer upperparts and fringes to flight-feathers. Leaves a slimmer impression than Reed- and Marsh W., with flatter forehead and tapering bill. Posture often Sylvia-like with frequent cocking, flicking and fanning of tail.
Sound:Contact call a short and sharp Lesser Whitethroat-like "tek", different from Mars W. Alarm call a dry, rolling "krrrreet", often with a register break splitting into high register overtones. Song recalls Marsh Warbler in timbre but is generally diagnostic. Tempo slow and deliberate, pace recalling that of Song Thrush, with marked pauses. Typical articulate, arpeggio-like whistling motifs alternated by mimicry are often repeated many times. Daytime song less typical than normal song at night, with faster pace and less repetition.
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSound recording:Recorded by Edmunds Racinskis