HERRING GULL. 553 



extent of two inches, but having a small broAvn mark near 

 the end of the inner web, and the second quill with a white 

 spot near the end ; the secondaries are largely tipped with 

 white, as arc the larger scapulars. 



Length 23 inches ; extent of wings 49 ; bill along the 

 ridge Sf^, its height at the angle -^ ; tarsus 2^ ; middle 

 toe 2f . 



A male, marked Winter Island, July 1, 1822, has the bill 

 gamboge-yellow, with the spot on the lower mandible deep 

 orange. The plumage coloured as above, the outer six quills 

 Avitli an oblique band of brownish-black ; the first with a 

 large white spot near the end, then a dark bar, and the tip 

 Avhite; the second with a white spot on the inner web. 



Length 24 ; extent of wings 40 ; bill 2^, its height -j% ; 

 tarsus 2^ ; middle toe 2f . 



Another female, killed on Winter Island on 29th June 

 1822, is similar to the last in its markings. 



Bill 2f , its height f ; tarsus 2J ; middle toe 2f . 

 An individual shot in the beginning of February 1824, 

 and in its second winter plumage, has the bill horn-colour, 

 tinged with yellow, from the base to near the fore part of the 

 nostrils, lighter on the lower mandible, the remaining parts 

 of both mandibles bluish-black, excepting the tips, Avhich are 

 yellowish-grey ; the iris dark brown, the edges of the eyelids 

 dusky ; the angle of the mouth flesh-coloured ; the feet pale 

 flesh-colour tinged with blue, at the tibio-tarsal joint with 

 green ; the claws brownish-black. The forehead is whitish ; 

 the rest of the head and the neck ashy-white, streaked with 

 pale brown ; the back mottled with bluish-grey, pale brown, 

 and yellowish- white ; the rump brownish-ash, with indistinct 

 marks of pale brown ; the scapulars bluish-grey toward the 

 base, with the principal part toward the end pale brown, a 

 considerable portion of the end yellowish-white, of which 

 there are also irregular spots along the edges. Primaries 

 pale brown, deepening toward the end, the tips margined 

 with brownish- white ; wdng-coverts ash-grey, mottled with 

 hair-brown, the tips of the larger brownish-white ; the pri- 

 mary coverts all grey, tinged with hair-brown. The 

 secondary coverts similar, but speckled with yellowish- 



