Table 1 Studies of Pacific dunlin on the Fraser River estuary made in winter, from 1971 to the present.
From: Winter body mass and over-ocean flocking as components of danger management by Pacific dunlins
Winter | Observer | Methods | Over-ocean flocking? |
|---|---|---|---|
1971/72 | R. Drent | Surveys/observations [42] | No |
1976 | P. Major | dunlin 3D flock structure [43] | No |
1977/80 | G. Kaiser | frequent mist-netting [27] (pers. comm.) | seen once |
1979/80 | K. Fry | regular high tide counts 27 surveys; [19] | seen on occasion during fall migration |
1981/84 | A. Farr | dunlin foraging ecology [44] | observed when tide and wind very high |
1989/90 1990/91 | R. Butler | regular high tide counts, 29 surveys [26] | No |
1995/98 | P. Shepherd | Ph.D. study [31] | See frequently in all years |
all years | R. Swanston | many birding visits, plus radar from ferry | first noted March 1996, regular occurrence since (pers. comm.) |
all years | R. Butler | many visits | first noted April 26, 1994 (pers. comm.) |
1997/2000 | L. Evans Ogden | Ph.D. study [39] | seen frequently in all years |
1994/2003 | D. Dekker | 152 observation days [24] | seen regularly in all years |
2006 (Jan) | D. Dekker | detailed observations see Fig. 1 | Seen 15/17 d, averaging 2.75 h |
2005/2007 | Y. Zharikov | dunlin feeding dispersion [45] | seen frequently; (pers. comm.) |