68 BIRDS OF EUROPE AND NORTH AFRICA 



S. europaea homeyeri Hartert. Close to "europaza" but with 

 a slight ochreous tinge on breast and abdomen. 



Resident. — Baltic Provinces, E. Prussia, Poland. 



S. europaea uralensis Gloger. Like " europaea " but smaller. 

 Wing 80-84 5 beneath pure white with less chestnut on flanks 

 and under tail coverts. 



Resident. — Ural Mountains, Volga Plain, Ufa, N.E. Samara 

 (where it meets "europaea") and S. Orenburg Provinces; east 

 into Siberia. 



S. europaea caesia Wolf. Like " europaea '^ but darker above ; 

 chin, throat, cheeks, and ear coverts white ; underparts cinnamon 

 buff, with chestnut flanks and under tail coverts. Wing ^ 75-79. 



Resident. — Denmark (Jutland), Middle and S. Europe (except 

 Sicily, S. Spain and Portugal). 



S. europaea britannica Hartert. Like "c^sia'*' but generally 

 paler beneath and chestnut of flanks paler. Wing $ 83-88, 

 $ 80-86 (W.). Bill 15-16. 



Resident.— Y.w'gXd.n^^ Scotland (rare). 



S. europaea hispaniensis Witherby. Resembles " britannica " 

 in colour ; is greyer on upper parts and less buff below than 

 "cassia." Bill shorter and blunter than in either. 



Resident. — S. Spain and Portugal. 



S. europaea atlas Lynes. Very similar to "caesia" but bill 

 conspicuously more slender, attenuate, base smaller. Feet and 

 claws rather weaker. Wings $ average 87 (Lynes). 



Resident.— ViididX^ Atlas, Morocco. 



S. europaea caucasica Reichenow. Very like "csesia" but 

 bill 2-3 m.m. shorter and blunter ; an indistinct white line over 

 black eye-stripe, ending in a spot behind the eye ; shade of under- 

 parts variable as in "caesia." 



Reside?tt. — Caucasus. 



Sitta whiteheadi Sharpe. 



(^ Above blue slate, crown and ocular stripe black, eyebrow- 

 white, the two latter extending to nape ; beneath dull buffy 

 white. Bill blackish, light blue at base. Legs and feet 

 plumbeous. 9 lacks black on head. Wing ^ 72, $ 7o-5- 

 Tarsus 17. Bill 15-16 (H.). 



Reside?it. — Corsica Mountains. 



