.OF EASTERN PENNSYLVANIA. 347 



male is so completely absorbed as to be oblivious 

 to all around him. He -has a peculiar Mbit of 

 erecting his crest and expanding his throat, i.' On 

 theintnision of a feathered stranger he ceases his 

 song^and in a fit of anger, gives chase to thepre- 

 sumptuous intruder. | 



Thiei inest of this species is placed in fir spruces, 

 or c©(3iars,- ordinarily, but,' sonletimes high up ih an 

 apple-tree, • at an elevation in the . generality of 

 cases, of about five feet from the ground. It is 

 built upon a branch, and measures two ^nd a half 

 inches in height and three and; a half inches in 

 breadth, and hasi walls less than an inoh in thickness. 

 It is shallow and consists ■ of a framelvorkWef 

 vegetable fibres, grass-stems, strips of barkj and 

 .woody fragments. The rim is constructed of her- 

 baceous stems, with their ends projecting into a 

 sort of low palisade. The inner-structure is c6rn- 

 posed of minute fibres closely woven together. 

 <S@(netimes the rlest is lined with' down and 

 feathers of birds, and fur of small animals. 



The eggs areoblong-oval, considerably acumi- 

 ■nateat one end, and vary in size and configuTation. 

 They are a pale emerald-green, and spotted with 

 ai-dark brown which is almost black in some species 

 at the larger end. The ground color is brighter 

 wJaen fresh, but assumes a lighter shade on ex- 

 l^osure to light. The average measurement is. .86 

 -by. .68 of an' inch. 



Citrvirostra leiuoptera, Brehiii. 



The White-winged Crossbill is undoubtedly 



