R.S. Crossin Oct. 1968 Data Sheet for Marked Birds Sheet For Subsequent Visits to Nest Nest No. Date Band Number of Bird at Nest Status of Nest or Parent Other Comments or Information 1 15- NB 767-40015 still 2 eggs Male (yellow-leg) incubating 2045 2 15- NB 767-40016 Male (blue-leg) 3 15- NB 767-40017 Female (yellow-leg) 4 15- NB 767-40018 Female (blue-leg) 5 15- NB 767-40019 Male (black-leg) 6 15- NB 767-40020 Male (yellow-leg) incubating at 2125 7 15- 80° Female eggs at 2125 8 15- 3° Both legs at 2120 9 15- Still 1 egg One bird on egg at 2135, egg 10. 10 15- 84° Incubating at 2135, at nest I did not find any birds laying or with eggs if still on incubation. 15. The wind was very strong and I had to wait until the next day for a better time to visit. It was difficult to see the birds without being too close, but it is necessary to get good data. I noticed that the birds were more active than usual during the afternoon. [illegible]