. Bulletin of the British Ornithologists' Club. Birds. a *L35 5+36363138394D4« 4l 43 4+ 45 46 47 4* 46 56 51 SSL I 2 3 4 AUG 6EP OCT NOV DEC JAN. WEEK 5 6 7 8 9 iO U ft 13 14 15 16 II U fl 20 21 21 23 24-15 26 27 K tt 30 FEB MAR APR HAy UUM JUL Figure 3. Mean number of rufous-chested Zonibyx modestus dotterels recorded by weeks (consecutive 7 day periods) 1972-1974 in the Falkland Islands. Falkland on 20 May 1972 and 9 at West Point Island, West Falkland on 9 May 1973. Conclusion The appearance of flocks at about the same time each year in Aug/ Sep, the rapid build up of flocks in March/April
. Bulletin of the British Ornithologists' Club. Birds. a *L35 5+36363138394D4« 4l 43 4+ 45 46 47 4* 46 56 51 SSL I 2 3 4 AUG 6EP OCT NOV DEC JAN. WEEK 5 6 7 8 9 iO U ft 13 14 15 16 II U fl 20 21 21 23 24-15 26 27 K tt 30 FEB MAR APR HAy UUM JUL Figure 3. Mean number of rufous-chested Zonibyx modestus dotterels recorded by weeks (consecutive 7 day periods) 1972-1974 in the Falkland Islands. Falkland on 20 May 1972 and 9 at West Point Island, West Falkland on 9 May 1973. Conclusion The appearance of flocks at about the same time each year in Aug/ Sep, the rapid build up of flocks in March/April and disappearance by May, together with the paucity of records from May to July and in early August, suggest that a big majority of Rufous-chested Dotterels occurring in the Falkland Islands are migratory. Furthermore, in agreement with Woods (1975) and earlier authors, small flocks or in- dividuals undoubtedly remain in isolated localities on both East and West Falkland. Acknowledgements My thanks to Peter Ewins for advice on the preparation of this short paper and to David Saunders for his critical comments on an early Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists' Club. London : The Club
Size: 2479px × 1008px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1893
