DENDRCECA CHRYSOPARIA. 183 



three known specimens of this rare species. The upper figure is taken from 

 the female shot near Tactic. The central figure is from the adult male in 

 Mr. Dresser's collection, and represents, no doubt, the full breeding-plumage 

 of this bird. The lower figure is from the second Tactic specimen, which 

 is probably a male in autumnal plumage — in which the black of the back is 

 not quite so pure as in the spring bird, each feather having a dark greyish 

 edging. 



References : — 



Bendrmca chnjsojjaria, Scl. & Salv. P. Z. S. 1860, p. 298 ; Ibis, 1860, p. 273 ; Scl. Ibis, 1865, 

 p. 89; Dresser, Ibis, 1865, p. 477; Baird, Rev. Amer. B. i. p. 183; Baird, Brewer, & 

 Ridgway, N.-Am. B. i. p. 260. 



The following carefully drawn characters, by Prof Baird (Rev. Am. B. 

 i. p. 184), serve to distinguish this and its closely allied species : — 



"Common Characters. — Upper parts more or less olivaceous green, with the feathers streaked 

 centrally with black (sometimes concealed) . Sides of head yellow. Chin and throat 

 black ; rest of the underparts (including inside of wings) white, with or without yellow 

 on breast. Wings with two white bands. Inner web of lateral tail-feather almost 

 entirely white from the base. 



" Above bright olive-green, with concealed black streaks ; tail-coverts ashy. Sides 

 conspicuously streaked with black; crissum unspotted. Jugulum some- 

 times faintly tinged with yellowish. An obscure dusky olive stripe through 

 the eye and a crescentic patch of the same some distance beneath it . . . virens. 



"Above olivaceous ashy (rump pure ash), with more distinct black spots. Top and 

 sides of head clear yellow, the feathers of the crown tipped with black or 

 clouded with dusky plumbeous. No dark markings or stripes on side 

 of head. No distinct black streaks beneath; black of throat restricted 

 to front of neck occidentalis. 



" Prevailing colour of upper part black, with olivaceous edgings to back ; rump and 

 upper taU-coverts pure black. Sides and crissum streaked with black. A 

 simple black stripe through the eye, no patch beneath it chrysoparia. 



2 c 



