Calls of Pechora Pipit
Nick Riddiford and Pete Ellis
British Birds 81(1988):469-470
[...]
"CALL. A
Short, soft 'Pit', given as single note, often two or three times in succession. Shorter than all Meadow Pipit call notes, except some anxiety notes. Lower-pitched and distinct from any other West Palearctic pipit of our experience. In field-notes, we have described this
call as soft, quiet or fairly quiet; and it can easily be drowned if pipits of other species are calling nearby.
CALL B
Short, dry 'Pwit', given only as single note. Probably as short as call A, but both louder and more forceful (but still quiet); and may appear longer owing to its notable dryness and relative volume.
CALL C
Loud, sharp or hard, generally three-note flight-call, transcribed as 'Tsip-tsip-tsip' or 'Pswit pswit-pswit', vaguely recalling flight-calls of Pied Wagtail MoktciUa alba or, more particularly, Grey Wagtail M. cinerea. Each note is monosyllabic and clearly differentiated. This three-note call is generally repeated, but with pauses between each call. The loud, strong 'Pwit' flight-call described by Williamson may have been a loud version of call B, but was probably a single-note version of call C.
Each call is quite distinct from those of other pipits occurring in Britain or Ireland, but, unfortunately, to judge from our experience on Fair Isle, Pechora is the most silent of pipits on migration, and may be watched for long periods before uttering any sound. Fair Isle individuals tended to give call A immediately on taking flight, particularly towards dusk, or when flushed with (rather more anxious) Meadow Pipits, but even then were more often silent."
[...]
"It might be added that the species' general silence may be a useful identification feature: any heavily marked, silent pipit would certainly merit investigation."
Met dank aan PdeV