270 AVES : MACKOCIIIUKS. — XLV. 



449. CHORDEILES Swainson. (xopbri, a musical instrument ; 

 dfiXr], evening: ) 



85fi. C. virgiiiianus ((imelin). Nicht Hawk. Bull Bat. 

 Blac'kisli, l)ariH'<l and nidttlod with grayish and biilTy; a large wing 

 8j)ot, bar across tail, and V-shaped blutch on throat — white in ^, 

 tawnv or obscure in 9> ^^^ wing spot placed in front of tip of 7th 

 quill. L. yj. W. 8. T. 5. N. Am., very abundant, flying high 

 in evening or cloudy weather. 



Family CLXI. MICROPODID^. (Tim. Swikts.) 



Bill fissirostral, as in the (ioatsuckcrs and Swallows. Wings 

 very long, thin and jjointed; secondaries very short. Feet small, 

 •weak ; hind toe often elevated or otherwise turned ; toes com- 

 pletely cleft; middle claw not pectinate; no rictal bristles; tail 

 feathers 10; plumage compact. In most species the salivary- 

 glands are highly developed, and their secretion is used as a glue 

 in the construction of the nest ; species of Collocalia in China thus 

 form the edible bird's nest. Small birds of the warmer parts of 

 the world, bearing a suj)erficial resemblance to Swallows, but struc- 

 turally very different, being closely nlatcd to the lluuuning Birds, 

 nearer to them even than to the (Joatsuckers. Genera G or 8 ; 

 Hpecies 50. (/xwcpof, small ; novs, foot.) 



a. Tarsus tiarc, lonfjir than middle toe; tail rounded, its fcafliors with the 

 shafts spinous, projecting beyond the phimage . . . Cii.BTfUA, 450. 



450. CHiETURA Stephens. (xn»'"7, bristle ; ovpd, tail.) 

 857. C. pelagica (L.). CniMNKY Swift. Chimney Swal- 

 low. Sooty brown ; throat paler. L. 5^. W. 5. T. 2. PI N. Am. 

 abundant ; now nesting in chimneys, as formerly in hollow-trees. 



Family CLXll. TROCHILID^. (Tin: lli mmi.ng Birds.) 



Bill subulate, usually longer than the head, straight or curved ; 

 tongue capable of great protrusion. Wings long and pointed, the 

 fcconilaries short, only 6 in number; tail of 10 feathers. Feet 

 \cry small, with long sharp claws. Smallest of all binls and among 

 the most brilliantly colored. Genera 75; species 300 or more, one 

 of the largest families in Ornithology. All are American, and most 

 of them triipical, but our common species ranges far into Canada, 

 Chielly insectivorous; not musical. 



a. First primary not attenuate, bowed or cur^•ed inwards; bill strniphf ; frontal 

 feathers covering nasal scale Tkochilus, 461. 



451. TROCHIIjUS T.innajus. (rpoxi^os, plover.) 



R58. T. colubria L. lit iiy-tmuoatkd IIlmmino Bird. ^ 

 metallic green above; a ruby -red gorget ; tail deeply forked, 



