18 Mr. A. H. Holland on some Birds 



20. Centrites NIGER. (Arg. Oni. i. p. 134.) 



March 2ncl. No. 120. Red-backed Tyrant. $. Common. 



Legs black ; eyes black ; beak black. 



Arrives here in February, and departs about August. 



21. Serphophaga subcristata. (Arg. Orn. i. p. 140.) 

 April 11th. No. 110. White-crested Tyrant, c?. Common. 

 Legs black ; eye black ; beak black. 



This small Tyrant is seen in every small plantation, where 

 it seeks its food like a Flycatcher, darting off a branch to 

 capture insects on the wing ; it is commoner than is usually 

 supposed, as it is easily overlooked on account of its colour 

 and retiring disposition. These birds seem to pair for life, 

 and are never seen in flocks, nor do they appear to migrate. 

 The cup-shaped nest is placed in the fork of a shrub, or 

 suspended in fir trees at no great height : it is composed of 

 twigs, rootlets, horse-hair, lichen, and a great deal of moss ; 

 inside the lining is of soft feathers. The eggs are four in 

 number, pear-shaped, and of a uniform cream colour. 



25. Empidonax bimaculatus. (Arg. Orn. i. p. 155.) 



April 11th. No. 108. Rare. 



Legs dark brown ; eye black ; beak black ; under man- 

 dible yellowish. 



These birds arrived on April 11th, and departed next day, 

 this being the only time I have noticed them here. They 

 were exceedingly tame, and numbered some fifty individuals. 

 They seemed to prefer the Paradise-trees, from which they 

 constantly made short turns after passing insects. 



[Along with this specimen, which Mr. Holland mistook 

 for Contopus brachytarsus, came an example of Serphophaga 

 nigricans, apparently obtained on the same occasion.- — 

 P. L. S.] 



31. Circus cinereus. (Arg. Orn. ii. p. 57.) 



March 17th. No. 121. S- Rare. 



Legs orange; eye reddish brown; beak brown. 



This Hawk seems to have no fear of man, but follows him 

 apparently in hopes that he will put up some small bird. It 

 has a peculiar mode of ahghting. When flying quietly along 



