39. 
40. 
41. 
42. 
46. 
SVANUIV eee Sle Tits) Ats> 
’ 
. Smaller, with shorter, much slendever bill, under parts paler, buff, and 
bluish grey of upper parts clearer. Wing 79,5-82, bill 16,5-18 mm. 
Larger, with stronger, as well as longer bill, under parts darker, light 
ochraceous, and bluish grey of upper parts darker. Wing 81-86, 
bill rS-20 mm, 
. Larger, with long, powerful bill. Under parts very deep ochraceous. 
Wing S7, bill 27 mm. . s 
Smaller, with shorter, slenderer bill. Under parts paler ochraceous. Wing 
never more than 85, generally less; bill r6-r9,5 mm. . 
. With larger, longer bill : r7-19,5 mm. Whitish frontal edge indistinct. 
With shorter bill: r6-17,5 mm. W hitish frontal edge more or less distinct. 
. Bull stout, strong : 16-17,5 mm, Under parts more deeply ochraceous 
Bill slender : 17-19 mm. Under parts less deeply ochraceous . 
. With a broad, well-defined white superciliary stripe from base of bill to 
sides of neck. Pilewm deeper bluish grey than the back, forming a 
kind of indistinct dusky cap as 
No well-defined white superciliary stripe. Prlewm 6 Pn the same 
shade of bluish grey as the back 
Breast and abdomen very pale greyish buff 
Breast and abdomen pure buff, without any greyish admixture : 
Blackish postocular streak well-defined; abdomen deeper, tawny buff or 
ochraceous buff ye : 
Blackish postocular streak obsolete ; abdomen alee clear ire 
Black eye stripes united on forehead ; central parry of rectrvices with a white 
spot near base. Abdomen and under tail coverts uniform deep fulvous. 
Black eye stripes not united on forehead ; central paty of rvectrices without 
any white at base. Abdomen and under tail coverts vufescent buff or 
isabelline rufous . 5a ee xP lke ape ae Bee 
Bull extremely short and slender : 16-18,5, its depth at base not more 
than 4,5 mm. ; wing about 73-75 mm. ; with an indistinct dusky loral 
stveak and a narrow dusky border along upper margin of ear coverts . 
Bull stout and longer, more than 19 mm., its depth at base 5-7 mm. ; wing 
more than 75 mm. ; a very broad, deep black stripe running ie base 
of bill through eye to sides of neck. 
. Smaller : wing 75-82 mm.; bill slender, shorter, rg-22 mm., its depth 
at base about 5-5,5 mm. 
Larger : wing 83-92 mm.; bill stouter, longer, 22-25 mm., its depth at 
base about 6-7 mm. 
. Upper parts darker, decidedly | bluish grey; bill stronger and stouter 
Upper parts paler, more whitish grey ; bill slenderer 
. Larger : wing 78-82, tail 46-52, bill 20-22 mm., with rufous buff of 
abdomen slightly darker. Bn eChato ae eae oo Cae 
Smaller : wing 75-77, tail 43-47, bill 19-20 mm., with rufous buff of 
abdomen slightly paler . . 
Larger : with slightly stoutey bill (wing 82, bill 2 22 bn Ne and Soa 
buff of abdomen vather deeper 
ints 
10. 
13}, 
24. 
40. 
41 
land 
7 
. 5. EUROPA PERSICA. 
. S. EUROPA BRITANNICA. 
S. EUROPA RUBIGINOSA. 
36. 
S. EUROPA CHSIA. 
Sie 
S. EUROPA CAUCASICA. 
S. EUROPA LEVANTINA. 
39. 
41. 
S. CANADENSIS WHITEHEADI Q. 
40. 
S. CANADENSIS CANADENSIS Q. 
. S. CANADENSIS VILLOSA ©. 
. S. HIMALAYENSIS. 
. S. TSCHITSCHERINI. 
43. 
44. 
47- 
AD). 
46. 
S. NEUMAYER NEUMAYER. 
. S. NEUMAYER ZARUDNYI. 
42. S. NEUMAYER SYRIACA, 
