4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I43 



Shining Honeycreeper {Cyanerpes lucidus). — Much smaller than 

 the green honeycreeper, and much less tanagerlike in general appear- 

 ance. Sexes very different in adult plumage. The adult male is blue, 

 with black throat, wings, and tail. The adult female is green above, 

 with a bluish head, and dirty white below, streaked with bluish. Juve- 

 niles of both sexes are similar to the adult female. 



Resident in Panama. Most common along, perhaps confined to, 

 the edges of fairly mature forest. Primarily a bird of the treetops. 



Very similar to the green honeycreeper in voice and movements. 

 Only slightly gregarious apart from mixed species flocks. 



Red-legged Blue Honeycreeper (Cyanerpes cyaneus). — Similar to 

 the shining honeycreeper in size and shape. Sexes different in appear- 

 ance in adult plumages. The adult male has two distinct plumages. 

 In full nuptial plumage the adult male is a brilliant sapphire blue, with 

 turquoise blue crown, black upper back and tail, and black wings with 

 bright yellow edgings on the primaries and secondaries. In nonbreed- 

 ing plumage the adult male is dull gray-green, with the same wings 

 and tail as in the breeding plumage. The adult female is always dull 

 gray-green all over. Juveniles of both sexes are similar to the adult 

 female. 



Resident in Panama. Very common both in young, scattered, sec- 

 ond-growth forest and along the edges of fairly mature forest. Pri- 

 marily a bird of the treetops. 



Very gregarious apart from mixed species flocks. Very restless and 

 noisy, frequently uttering several different types of call notes and/or 

 hostile notes, most of which are quite distinctive in sound. 



Blue Dacnis (Dacnis cayana). — Rather similar to the green honey- 

 creeper and the Tangara tanagers in shape, but slightly smaller. Sexes 

 very different in appearance when adult. The adult male is bright blue 

 (greenish in some lights) with black markings. The adult female and 

 juveniles of both sexes are grass-green with bluish heads. 



Resident in Panama. Most common in young second-growth forest 

 but occurring also along the edges of fairly mature forest. Primarily 

 a bird of the treetops. 



Only very slightly gregarious apart from mixed species flocks. 

 Rather active and restless, but less noisy than the green honeycreeper 

 or the red-legged blue honeycreeper. 



Crimson-backed Tanager (Ramphocelus dimidiatus). — A rather 

 large tanager (approximately the same size as the palm and blue 

 tanagers). Very conspicuously and distinctively colored. The adult 

 male is bright crimson and black. The adult female and juveniles of 

 both sexes are similar but duller. 



