32 BIEDS OF KANSAS. 



B. 115. R. 357a. C. 400. G. 166. U. 420a. 



165. Chordeiles virginianus henryi (CASS.). Western Nighthawk. Summer 

 resident in middle and western Kansas; common. Arrive about the middle of 

 May. Begin laying the first of June. Nesting and habits similar to C. viryini- 

 anus; the latter a little smaller and a shade lighter in color. 



SUBORDER CYPSELI. SWIFTS. 

 FAMILY CYPSELID^. SWIFTS. 



SUBFAMILY CH./ETURIN>*E. SPINE-TAILED SWIFTS. 



GENUS CHJETURA STEPHENS. 



B. 109. R. 351. C. 405. G. 162. U. 423. 



166. Chsetura pelagica (LINN.). Chimney Swift. Summer resident; abundant 

 in eastern Kansas. Arrive the last of April to first of May. Begin laying the 

 latter part of May. Nests attached to the sides of chimneys and hollow trees, 

 a semi-circular structure made of small sticks of uniform length and size, which 

 are strongly glued together and fastened to the wall with saliva of the birds. 

 Eggs, usually four; .75x.50; pure white, not highly polished; in form long oval. 



SUBORDER THO CHILI. HUMMINGBIRDS. 

 FAMILY TROCHILID^l. HUMMINGBIRDS. 



GENUS TROCHILUS LINN^US. 



SUBGENUS TROCHILUS. 



B. 101. R. 335. C. 409. G. 161. U. 428. 



167. Trochilus colubris LINN. Ruby-throated Hummingbird. Summer resi- 

 dent; common. Arrive the last of April to first of May. Begin laying the last 

 of May. Nest usually placed on and attached to the top of the body of a 

 small horizontal limb of a tree, six to twelve feet from the ground a delicate, 

 beautiful nest, composed of a cottony substance, and soft silky fibers from 

 plants, the outside dotted over with lichens. Eggs, two; .48x.33; pure white; 

 in form elliptical. 



