BIRDS OF THE BRITISH ISLES. 413 



Sclavonian (Srebc- 



John UutJCArJ 



The Sclavonian Grebe {Podiceps cornutus, Gmelin) is a 

 straggling autumn and winter migrant to the British Islands, 

 and inhabits the Northern Nearctic and Palearctic Regions. 

 The adult male in summer has the forehead, crown, and 

 neck-ruff, glossy black ; lores, brownish-red ; occipital tufts, 

 and streak behind the eye, yellowish-chestnut ; upper 

 plumage, deep brown ; feathers, margined with paler ; quills, 

 dusky ; secondaries, mostly white or dusky ; fore part, 



