BL.VCK — BLUE. 27 



Blue-backed Dove. Macgilli\Tav's name for the STOCK- 

 DOVE. 



Blue-backed Falcon : The PEREGRINE FALCON. (North 

 England.) From the dark blue-grey of the mantle. 



Blue-backed Maw: The HERRING-GULL. (Orkney and 

 Shetland.) Also occurs in Yorkshire as Blue-backed Gull. 



Blue-billed Curre : The TUFTED DUCK. (West Coast.) 



Blue-Boxnet or Bluecap : The BLUE TITMOUSE. The 

 former is a Scots and Irish and the latter an English pro- 

 vincial name. Nelson and Clarke, however, say Blue Bonnet 

 is used in the West Riding of Yorkshire, but Bluecap else- 

 where in the county. 



Blue -BREAST : The NORWEGIAN BLUETHROAT. 



Blue Darr or Blue Daw: The BLACK TERN. (Norfolk.) 

 Jolins says Darr is a corruption of Dorr-hawk, a name for 

 the NIGHTJAR, " which it resembles in its mode of flight 

 and also in its food." 



Blue Dove : The ROCK-DOVE. (North Yorkshire.) 



Blue Dunnock or Blue Sparrow : The HEDGE-SPARROW. 

 From its neck and breast being of a bluish-grey tint. The 

 first is a Cheshire name. 



Blue Gled or Blue Kite : The HEN-HARRIER. (Scotland.) 

 From the blue-grej^ plumage of the male. 



Blue Ha\\'k. A common name for the SPARROW-HAWK; 

 also the MERLIN (North Yorkshire), the HEN-HARRIER 

 (Be^nck) and the PEREGRINE FALCON (MacgiIli\Tay). 



Blue-headed Qu-\ketail : The BLUE-HEADED WAGTAIL. 

 (Macgillivray.) ^[acgilli\Tay separated the "Yellow Wag- 

 tails " under the name of " Quaketails " from the Black-and- 

 AMiite group or " Wagtails." 



BLUE-HEADED WAGTAIL [No. 74]. The name occurs in 

 Jen\Tis (1835). It is sometimes called the Blue -headed 

 Yellow Wagtail, and erroneously the Grey-headed Wagtail, 

 the latter being a distinct form. 



Blue Isaac or Blue Jig : The HEDGE-SPARROW. (Pro- 

 \'incial.) Isaac is probably a corruption of Hegcs-siigge (see 

 imder " Segge "). 



Blue Jacket :^^I0NTAGU'S HARRIER ; from the blue-grey 

 of its mantle (or jacket). 



Blue Jay : The JAY. (Linlithgow, and at Scarcroft, York- 

 shire.) 



Blue Maa or :\Iaw : The COMMON GULL. (Shetlands.) Blue 

 Maw is also a Scottish Border name for the species. 



