THE GENUS COTYLE COTYLE R1PARIA 435 



turbed, iu a very Babel! Again, I have found a colony of 

 Swallows in what would seem to be a very dangerous neigh- 

 borhood all about the nest of a Falcon, no other than the 

 valiant and merciless Falco potyagrus, on the very minarets 

 and buttresses of whose awe-inspiring castle, on the scowling 

 face of a precipice, a colony of Swallows was established in 

 apparent security. The big birds seemed to be very comforta- 

 ble ogres, with whom the multitude of hop-o'-my-thumbs had 

 evidently some sort of understanding, perhaps like that which 

 the Purple Grackles may be supposed to have with the Fish- 

 hawks when they set up housekeeping in the cellar of King 

 Pandion's palace. If it had only been a Fish-hawk in this 

 case instead Falco polyagrus, we could understand such amica- 

 ble relations better for Cliff Swallows are cousins of Purple 

 Martins, and, if half we hear be true, Progne was Pandion's 

 daughter. 



Genus COTYLE Boie 



II ir undo, p., of Authors. 



Cotile, Boie., Isis, 1822 (type H. riparia). 



Cotyle, Boie, Isis, 1826. 



Biblis, Less. "1837". 



Tarsus with a tuft of feathers at the base below, near inser- 

 tion of the hind toe. Edge of wing not rough. Claws little 

 curved, the lateral reaching beyond the base of the middle one. 

 Bill very small, the nostrils opening laterally and overhung by 

 a membrane. Tail much shorter than wings, emarginate. 

 Coloration dull and simple iu the type of the genus lustreless 

 brown above and across breast, white below. Eggs uncol- 

 ored, laid in holes in the ground excavated by the bird. 



There is a single American species of this particular group, 

 not different from that of Europe, and one of the most nearly 

 cosmopolitan of Passerine birds, inhabiting Europe, Asia, 

 Africa, and America. 



Bank Swallow, or Sand Martin 



Cotyle riparia 



HI run do riparia, of many pro-Linnaean writers, as Gesner, Jonst., Charlet., Willugby, Ray, 

 etc. L, SK i. 10th ed. 1758, 192, n. 4 (exFn. Svec. n. 247, etc. ). Briinn, OB. 1764, 

 74, D. 291. L. SN. i. 12th ed. 1766, 344, n. 4. Bodd. iabl. PE. 1783, 32; pi. 543, f. 2. 

 Gm. SN. i. 1788, 1019, n. 4.Schaeff. Mus. Orn. 1789, 23, n. 75.- Lath. IO. i. 1790, 575, 

 n. 10. Wili. A O. v. 1812, 46, pi. 38, f. . V. Ency. Meth. ii. 1823, 517, n. 2. De Witt Glint. 

 Ann. Lye. N. Y. i. 1824, 159. Bp. Journ. Phil.i. Acad. iv. 18C5, 258. Bp. Ann. Lye. 

 X. Y.il. 18-26, t>5. Less. Tr. Qrn. 1831, 2C9. 8. & R. FBA. ii. 1831, 333. Nutt. Man. i 



