30 Birps oF MASSACHUSETTS 
Springfield: “ Common winter visitant.’’ Wellesley : Frequent in spring 
and fall. 
49. Larus delawarensis Ord. RING-BILLED GULL. 
A not uncommon migrant in spring and autumn. 
July 31 to October 19; June. 
Essex County: “Winter. Common.” [?] Ipswich: ‘* Not uncommon 
migrant.” Wellesley : “Casual migrant.” Lake Cochituate. 
Note: Larus kumltent Brewst. KUMLIEN’s GULL. Probably anot un- 
common winter visitant. 
50. Larus glaucus Briinn. GLaucous GULL. 
A rare winter visitant from the north. 
November 30 to April 1. 
51. Larus leucopterus Faber. IcELAND GULL. 
A very rare winter visitant to the coast. There are but two 
definite records: Boston Milldam, “an immature specimen [was 
procured] on the 31st of January, 1880. It was in company with 
another of the same species and from twenty to thirty Herring 
Gulls.” 1 Near Boston, an immature specimen was taken in No- 
vember, 1882.2 Peabody in his list (1839, p. 381) inserts it “on 
the authority of Dr. [T. M.] Brewer who obtained it near Bos- 
TON. 
Essex County: “ Winter. Common.” [An evident error. ] 
52. Pagophila alba (Gunn.). Ivory GuLL. 
Accidental from the far north: there is but one record: A/en- 
omoy Island, one was shot after a northwest blow, December 1, 
1886, by one of the men of the Life Saving Station.® 
53. Rissa tridactyla (Linn.). Kirriwake GULL. 
A common winter resident off the coast; casual inland. 
October 2 to March 1. 
Bristol County: ‘‘ Uncommon winter visitant off the coast; common in 
the fall.” Cohasset: “Common in fall and winter.” Essex County : 
1 Bangs; Bull. Nutt. Orn. Club, Vol. VI, No. 2, Apr., 1881, p. 124. 
? Cory; Bull. Nutt. Orn. Club, Vol. VII, No. 1, Jan., 1882, p. 60. 
3 Cahoon; O.& O., Vol. XII, No. 12, Dec., 1887, p. 206. 
ee 
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