34 
legs black ; tail forked like that of the 
Martin. Length seven inches three lines. 
Male and female alike." 
" This Petrel being new, and lately 
discovered in the Orkneys ; I propose 
giving it the name of Dr. Leach, Zoologist 
to the British Museum ; I dedicate it to 
this learned Naturalist and Friend, and 
beg him to allow me to pay this slender 
homage to his merits. We have at present 
examined only two specimens of this Pe- 
trel in the cabinets of Europe, the first 
killed in the Island of St. Kilda by Mr. 
Bnllock, who saw there a small number 
of them, and which is now in the British 
Museum; the second killed on the coast 
of Picardy, and is preserved in the collec- 
tion of Mr. Baillon of Abbeville. The 
Museum at Paris and Baron Lougier also 
possess a specimen. This bird is pretty 
common in St. Kilda; never seen else- 
where, except the specimen killed in 
Picardy, which was probably a strayed 
bird ; lives upon salt lakes, and the sea 
coasts. Its food is small insects which it 
seizes on the surface of the water without 
