44 Records of Birds which have bred in Captivity. 
540.— SILVER GULL. L. nuvae-hollaudiac. 
Hybkids. 
X Silver Gull (Black-headed Gull). 
❖ 
841.— GREAT BLACK-BACKED GULL L. marinus. W.T.P. 
Zoo. 1904, etc. 
o 
642.— LESSER BLACK-BACKED GULL. L. fuscus. 
Hybrids. 
LESSER BLACK-BACKED GULL x HERRING GULL. W.T.P. 
0 
543. — HERRING GULL argciitatus. W.T.P. 
Zoo, 1904, etc. 
Hybrids. 
HERRING GULL x YELLOW-LEGGED HERRING GULL. W.T.P. 
X Herring Gull (Black-headed Gull). 
X Herring; Gull (Lesser Black-backed Gull). 
■ ❖ 
544. — YELLOW-LEGGED HERRING GULL. L. cachinnans. 
Hybrids. 
X Yellow-legged Herring Gull (Herring Gull). 
^ — 
845.— JAMESON'S GULL L. jamesoni. W.T.P. 
Zoo, 1903, etc. 
Hybrids. 
X Jameson's Gull (Black-headed Gull). 
— ^ 
SPHENISCIDAE. 
546. — BLACK-FOOTED PENGUIN. Splicuisciis demersus. W.T.P. 
1st Zoo, 1906: and since. 
<> 
RALLIDAE. 
547. — PECTORAL RAIL. Hypotacnidia philippcnsis. W.T.P. 
Zoo, 1909, and later. 
■ ^ 
548. — YPACAHA RAIL. Aramides ypacaha. W.T.P. 
