PETREL. 18 9 



21— FRIGATE PETREL. 



Procellaria marina, Ind. Orn. ii. 826. 

 Frigate Petrel, Gen. Syn. vi. 410. 



LENGTH eight inches and a half. Bill one inch, slender, and 

 not greatly hooked ; top of the head and neck behind, as far as the 

 shoulders, bluish ash-colour ; back and wing coverts brown ; rump 

 hoary blue ; sides of the head above the eye, and all the under parts, 

 white ; under the eye a trace of bluish ash ; back and wing coverts 

 brown ; the tail, when spread, seems hollowed out in the middle, but 

 scarcely what may be called forked ; legs black, on the middle of 

 each web a yellowish mark. 



Such is the description of a bird among the drawings of Sir Jos. 

 Banks. Said to have been met with in lat. 37. south. In a second 

 drawing I observe the rump to be very pale, nearly approaching 

 to white. 



22.— AMERICAN PETREL. 



Procellaria Fregata, Ind. Orn. ii. 826. Lin. i. 212. Gnt. Lin. i. 561. 

 Hirundo Americana, Roche/. It. 134. t. 135. 



THIS is a trifle smaller than the Stormy Petrel ; the plumage 

 dusky black above, beneath to the breast the same, but paler ; belly, 

 vent, and rump, wfate ; legs black. — Met with at sea. Allied to 

 the last. 



V. 



23 —STORMY PETREL. 



Procellaria pelagica, Ind. Orn. ii. S26. Lin. i. 212. Fn. suec. No. 143. Am. Ac 

 587. Act. Stock. 1745. 93. Gm. Lin. i. 561. Scop. i. No. 95. Brun. No. 117. 

 Muller, No. 143. Anders. Isl. ii. p. 54 pi. 1. Bids. vi. 140. t. 13. f. 1. Id. 

 Svo. ii. 398. Bon iii. 35. t. 39. Gerin. v. t. 538. Tern. Man. d'Om. 319. Id. 

 Ed. 2d. p. 810. 



