1. PAKUS. 13 



and forehead white, which colour graduall}' passes into Prussian 

 blue on the crown ; from each side of the forehead a white streak, 

 passing over the eye and meeting with its fellow on the occiput, 

 thus isolating the blue cap from the dark blue band which sur- 

 rounds the hinder part and the sides of the neck ; this band then 

 passes forwards under the cheeks and joins a triangular patch of 

 blackish colour on the chin and upper throat ; a narrow streak of 

 blackish blue runs from the nostrils through the eye and over the 

 ear-coverts, meeting the dark blue neck-band ; smaller wing-coverts 

 dark blue, the greater ones tipped with white ; primary-quills 

 blackish, external web pale blue, with whitish edgings to the ter- 

 minal half ; the inner secondaries with rather large white tips, the 

 external web bluish, and edged with yellowish ; tail blue, the outer- 

 most pair of feathers with a narrow white edge ; quills below dark 

 grey internally, with conspicuous whitish edgings ; edge of wing 

 blue ; under wing-coverts white ; breast, flanks, and under tail- 

 coverts sulphur-yellow; the breast with a longitudinal irregular 

 patch of dark blue ; abdomen whitish ; feet and claws bluish black ; 

 bill dark horn-colour. Total length about 4'5 inches, culmen 0*4, 

 wing 2-o-2-~, tail 2-3, tarsus 0-65. 



The sexes are alike in plumage. 



In ivinter the plumage is more fluffy', the blackish feathers of the 

 throat are edged with whitish, and the white edging to the outer 

 web of the outermost pair of tail-feathers is remarkably broader. 



Nestling. General colour above dingy olive-green ; crown of head 

 and neck-band dull blackish, with an olive tinge ; all the parts 

 which are white in the adult bird are yellow in the nestling, like 

 the whole underparts of the body ; secondary quills and greater 

 wing-coverts with whitish-yellow tips, and, like the tail, with only 

 a slight trace of bluish. 



06s. The Blue Titmice of the British Islands are always some- 

 what more dingy coloured than the continental, which, again, attain 

 their richest coloration in Spain. 



Hah. Found all over Europe and Asia Minor, with the exception 

 of Kussia. 



a. Pull. sk. England. J. Goidd, Esq. [C.]. 



h. Pull. sk. England. Purchased. 



c. Ad. St. Surbiton. Dr. Giinther [P.]. 



d. Ad. St. England. Purchased. 



e. Ad. St. Leicestershire. Th. Walker, Esq. [P.]. 

 /, g. Ad. St. Cambridgeshire. Mr. J. Baker. 



h, i. Pull. st. Cambridgeshire. Mr. J. Baker. 



k, I. S 2 ^^- ^^- Cambridgeshire, Jan. F. Godman & O. Salvin, 



1866(0.6'.). Esqrs. [P.]. 



7)1. (5 ad.sk. Cambridgeshire, Jan. F. Godman &0. Salvin, 



18r,7 (J. Baker). _ Esqrs. [P.]. 



M. c? ad. sk. Haddenham, Cambridge- F. Godman & 0. Salvin, 



shire, Mav 21, 1856 Esqrs. [P.]. 



(O. ,S'.). 



o, p. Ad. sk. Aviiigton, Hampshire, Capt. Shelley [P.]. 



Nov. 2o, l.-<72. 



y, /•. Ad. st. Devonshire. Col, Montagu [P.]. 



