Whooper Swan (Cygnus cygnus)
Senegal Thick-knee (Burhinus senegalensis)
Same size as Mute Swan. Adults pure white and juveniles greyish. The bill is black with a yellow wedge reaching well beneath the nostrils. Juveniles differs from Mute Swan in lacking black lores, and having a pink tinge to the grey bill.
Sound:Quite vocal. Trumpet-like clear honks of half a second length most frequent in flight and take-off/landing. Often voiced with a register break.
Contact call:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Hannu Jännes,http://www.xeno-canto.org ,Creative Commons Attribution-NonCommercial-ShareAlike 4.0
This species is UNPUBLISHED. Description is not yet completed. Species on the WP-syllabus have priority.
Ecology:
Links:
CC