Brown, R.G.B. 1976. Ivory Gulls off Labrador in summer. Amer. Birds 30:774. Finch, D.W. 1970. The fall migration. Aug. 16,1969—Nov. 30,1969. Northeastern Maritime region. Audubon Field Notes 24:13-21. ' . 1975. The spring migration. Apr. 1-May 31,1974. Northeastern Maritime region. Amer. Birds 29:125-129. ‘ 1976a. The winter season. Dec. 1,1975-Mar. 31,1976. Northeastern Maritime region. Amer. Birds 30:690-695. ' . 1976b. The spring migration. Apr. 1-May 31,1976. Northeastern Maritime region. Amer. Birds 30:811-815. ‘ ‘ ' 1976c. The nesting season. June 1-July 31,1976. NOrtheastern Maritime region. Amer Birds 30:926—930. » ' ' . 1977. The 75th Audubon Christmas bird count. 2. L'Anse-aux-Meadows, Nfld. 'Amer. Birds 31:428. . 1978a. The 78th Audubon Christmas bird count. 3. L’Anse-aux Meadows, Nfld. Amer. Birds 32:447. . 1978b. The spring migration. Mar. 1-May 31,1978. Northeastern Maritime region. Amer.Birds 32:977-981. Ebrster, R.A. 1983. The autumn migration. Aug. 1-Nov. 30,1982. Northeastern Maritime region. Amer. Birds 37:155-158. Godfrey, N.B. 1954. Birds of Prince Edward Island. Natl. Mus. Can. Bull. 132:155-213. 1966. The birds of Canada. Natl. Mus. Can. Bull. No. 203. Heil. 8.5. 1983. The winter season. Dec. 1,1982-Feb. 28, 1983. Northeastern Maritime region. Amer. Birds 37:279-281. Hbgan, G.G. 1983. First P.E.I. record for Lesser Black—backed Gull. P.E.I.gkyg Hist. soc. Newsletter No. 69:12. Hopkins, H.E. 1978. The 78th Audubon Christmas bird count. 20. The sydneys, N.B. Amer. Birds 32:451-452. 1983. The 83rd Audubon Christmas bird count. 24. The Sydneys, N.S. Amer. Birds 37:413. Lewis, H.F. 1941. Unusual number of Ivory Gulls (Pagophila alba) along the north shore of the Gulf of St. Lawrence. Can. Field-Nat. 55:76—77. Mactavish, B. 1982. The 82nd Audubon Christmas bird count. 7. L'Anse-aux-Meadows, Nfld. Amer. Birds 36:404—405. Maunder, J. 1979. The 79th Audubon Christmas bird count. 4. St. Anthony, Nfld. Amer. Birds 33:353. Peterson, R.T. 1980. A field guide to the birds east of the Rockies. 4th ed. Houghton Mifflin, Boston. smith, A.D. 1976. The 76th Audubob Christmas bird count. 22. Cape Tormentine, N.B. Amer. Birds 30:187-188. Squires, WLA. 1976. The birds of New Brunswick. 2nd ed. N.B. Mus. Mbnogr. Ber. No. 7, St. Jahn. ” Tanguay, R. 1949. Winter record of Ivory Gulls, St. Jean Port Joli, Que. Aug:66:206. Taverner, P.A. 1940. Ivory Gulls in the Gulf of St. Lawrence. Auk. 57:402-403. Tufts, R.W. 1973. The birds of Nova Sbotia. 2nd ed. Nova Scotia Mus., Halifax. Vickery, P.D. 1977a. The winter season. Dec. 1,1976-Feb. 28,1977. Northeastern Maritime region. Amer. Birds 31:304—309. _ . 1977b. The spring migration. Apr. 1—May 31,1977. Northeastern Maritime region. Amer. Birds 31:972-977. . 1978. The winter season. Dec. 1,1977-Feb. 28,1978. Northeastern Maritime region. Amer. Birds 32:321—324. . 1979a. The winter season. Dec. 1,1978—Feb. 28,1979. Northeastern Maritime region. Amer. Birds 33:263-265. . 1979b. The spring migration. Mar. 1-May 31, 1979. Northeastern Maritime region. Amer.Birds 33:751-753

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