HWYADWYDD IVORY. 129 



ICTERINE WARBLER [No. 141]. Occurs in Hewitson, 

 Yarreil, and Gould as Melodious Willow Warbler, and 

 Melodious Willow Wren. The species was named Sylvia 

 icterina by Vieillot in 1817, whence its name arises. 



ICWELL: The GREEN WOODPECKER. (Northants.) See 

 " Eaqual." 



IMBER DIVER : The GREAT NORTHERN DIVER. (Ireland.) 

 See Immer. 



IMMER, IMMER DIVER : The GREAT NORTHERN DIVER, 

 (Scotland.) Said to be lit. immerse, signifying the act of 

 diving, from Lat. immersus, to plunge into. Conf. Dan. 

 Imber ; Sw. Immer and Emmer ; Icel. Himbrim. The 

 name was formerly written " Imber Diver " by the older 

 ornithological writers from Willughby and Pennant to 

 Montagu, the last, however, also gives " Immer " as 

 a provincial name. Sibbald calls it the " Ember Goose." 

 Bewick (1804) gives " Imbrim " as a name for the species. 



Indian Gallinule. Examples of this species recorded as taken 

 in our islands had no doubt escaped from captivity. 



INDIAN STONECHAT [No. 177]. This is the Indian race 

 of the STONECHAT, first described by Blyth as long ago 

 as 1847. 



IOLAIR BHUIDHE, IOLAIR RiAMHACH. Gaelic names for the 

 WHITE-TAILED EAGLE. 



IOLAIR DHUBH. The Gaelic name for the GOLDEN EAGLE; 

 signifying " Black Eagle." 



IOLAIR TJISGE. A Gaelic name for the OS PREY; lit. "water 

 eagle." 



IRISH COAL-TITMOUSE. See COAL-TITMOUSE. 



IRISH DIPPER. See DIPPER. 



IRISH NIGHTINGALE. A name applied to the SEDGE -WARBLER 

 in some parts of Ireland, from its habit of singing at night, 

 and because the true NIGHTINGALE is unknown there. 



ISAAC or HAZOCK : The HEDGE-S PARRO W. (Worcestershire. ) 

 A corruption of Old. Eng. heisvgge (see Blue Isaac). 



ISABELLINE WHEATEAR [No. 173]. An Asiatic species 

 which takes its name from the isabelline colour of its plumage. 



ISLE OF WIGHT PARSON : The CORMORANT. (Hampshire.) 



IVORY GULL [No. 438]. The name, arising from the ivory 

 whiteness of its plumage, appears in Bewick (1832) and 

 Selby, and was adopted by Yarreil. It was, however, first 

 called " Snow-bird " by Edmondston and by Fleming. 



IVORY WHALE GULL : Macgillivray's name for the IVORY GULL. 



