Scotch Bonnet Island and Mohawk Island National Wildlife Areas Management Plan: appendix 1


Appendix 1: Colonial Waterbird Nests at Scotch Bonnet Island National Wildlife Area, Lake Ontario 1938-2010
Date Double-crested Cormorant Herring Gull Black-crowned Night Heron Great Black-backed Gull Source/Notes
1938 6 a - - G. McKeating, unpubl. data; Baillie 1947
August 1939 40 - - - G. McKeating, unpubl. data; Baillie 1947
18 July 1945 100 - - - G. McKeating, unpubl. data (DCCOs nesting, but not counted; 200 adults present)
12 August 1946 134 - - - G. McKeating, unpubl. data (134 DCCO nests); Baillie 1947 (total DCCOs estimated at 200 breeding pairs, although only 134 nests counted)
23 June 1950 154 500-600 - - Francis 1950
1955 - nesting - - Anonymous 1955
1972 5 145 - - Canadian Wildlife Service(CWS), unpubl. data
1973 2 188 - - CWS, unpubl. data
1974 - 109 - - I. Price, pers. comm.
1975 - 101 - - CWS, unpubl. data
29 April 1976 0 85 0 0 Blokpoel 1977. (14 April - 10 May 1976; max. HERG nests = 85 on 29 April 1976; no nesting RBGUs, CATEs or COTEs); H. Blokpoel, unpubl. data
25 May 1977 0 227 - - G. Fox and C. Cooper, unpubl. data (7 visits, 16 April - 25 May 1977, no DCCOs observed); Hebert et al. 2008
24 May 1978 10 0 - - G. Fox and C. Cooper, unpubl. data (6 visits, 02 May - 21 June 1978; max. count = 10 nests on 24 May 1978); C. Weseloh, unpubl. data
18 June 1979 0 - - - G. Fox and C. Cooper, unpubl. data (7 visits, 18 April - 18 June 1979; DCCOs observed on 4 visits, but did not nest); C. Weseloh, unpubl. data
1980 6 116 0 - CWS, unpubl. data (2 DCCO nests on 18 June 1980)
1981 12 151 - - CWS, unpubl. data (2 DCCO nests on 18 June 1980)
1982 0 138 - - C. Weseloh, unpubl. data
1983 4 75 - - C. Weseloh, unpubl. data
1984 29 - - - -
1985 0 - - - CWS, unpubl. data
1986 0 168 - 1 CWS, unpubl. data
1987 0 - - - CWS, unpubl. data
1990 2 204 27 1 Blokpoel and Tessier 1996; Hebert et al. 2008
1991 0 - - - CWS, unpubl. data
1992 0 - 23 - CWS, unpubl. data
1993 260 - - - CWS, unpubl. data
1994 586 124 17 - C. Weseloh, unpubl. data
16 May 1995 59 246 - - C. Hebert, unpubl. data
14 May 1996 352 245 - - L. Shutt, unpubl. data
1997 303 - - - CWS, unpubl. data
06 May 1998 520 206 - 2 to 4 L. Shutt, unpubl. data
1999 373 253 0 5 Hebert et al. 2008
2000 635 - 0 - C. Pekarik and T. Havelka, unpubl. data
27 April 2001 385 174 - 5 C. Weseloh, unpubl. data
25 June 2002 835 - - - C. Weseloh, unpubl. data
22 April 2003 442 131 - - C. Hebert, unpubl. data
13 May 2004 940 137 - - L. Shutt, unpubl. data
5 May 2005 637 163 - - C. Weseloh, unpubl. data
04 May 2006 985 119 - - L. Shutt, unpubl. data
17 May 2007 722 125 - - C. Weseloh, unpubl. data
2008 901 113 0 0 CWS, unpubl. data
15 May 2009 896 81 - - C. Hebert, unpubl. data (low because of storm loss)
03 May 2010 759 128 - - C. Hebert, unpubl. data

a Blank fields indicate not known and/or not reported.

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