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Alternative name: Eared Grebe
A medium-small grebe, length 28-34cm (11-13Â¼ in), wingspan 41-57cm (22Â½ in), weight 265-450 g.
Juvenile: Resemble non-breeding adult, but browner with cheeks tinged buff
Flight: Upperwing shows broad white trailing edge to secondaries but lacks white of forewing base seen in Slavonian.
At all seasons slightly upturned bill distinguishes from Slavonian and in non-breeding plumage the more diffuse border between dark and light on head is useful.
Dark of crown extends to well below level of eye and merges with grey ear-coverts thus less clearly demarcated compared to Slavonian.
 Similar Species
Widespread in the both the Old and New Worlds but with a more southerly range than that of Slavonian Grebe. Migratory in northern parts of range.
There are 3 subspecies:
The subspecies are very similar to each other, only realistically distinguishable by range. The extinct Colombian Grebe may have been better treated as a fourth subspecies, with recent genetic data showing it was embedded within Black-necked Grebe, very closely related to P. n. californicus.
Breeds on small and shallow, densely vegetated freshwaters, in Eurasia often in association with Black-headed Gulls or Common Terns. Breeding sites are frequently abandoned in favour of new sites for no apparent reason.
In winter on larger, more open freshwaters, estuaries and sheltered seas.
Breeding begins mid-April in south of range to June in north, probably year-round in Africa. Breeds colonially, nest is a low mound of vegetation anchored to emergent vegetation in shallow water. Eggs: 3-5 (rarely 2-8), whitish initially soon becoming stained (44 x 30mm). Incubated by both sexes but mainly female for 20-21 days. Young tended by both sexes but divide brood in later stages, young able to feed themselves at 14 days, independent at 21 days. Single-brooded, possibly double-brooded at times.
Aquatic insects and their larvae, small fish, amphibians and crustaceans.
A wide range of calls when breeding including a display trill, a whistling bidder-widder-widder and a low poo-eep. Alarm call is whit repeated 2-3 times.
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