Amerman, Kenneth E., 1964, 1966
Page 225
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Transcription
R. G. Newman 1966 Sand-Johnston January 19 We collected Sooties and autopsied in The morning. Total of 65 dead or badly injured, plus 2 Common Noddies. Autopsied 13, none with blood patches, 3 molting (2 at least) each. One tail feather each. Found one Blue-faced Booby on guywire base #7. With the exception of 2 imm-5A at 1900, no Browns even sitting on the hill in morning or evening. Afternoon spent on task work. Checked the other end and collected Belizees 1900. Banded from 2030-0030, total of 400+ first hundred checked for blood patches (0) and molt (2 at 1 outer reticul). No Graybacks nesting yet. They are on the islet and pier and a few were on the rocks above The pier after dark. Returned me Hawaiian Noddy while banding. Total of 7 Blue-faced on #7 1900. About 150 adult frigate in nesting colony, many immatures sitting around periphery. Sooties begin to mass offshore about 1600. They form two swirls, one off north side, other off south. They do not come in over island until about 1900, funneling in from west but not flying much over the causeway except for streaming across it earlier. First birds alighting about 1915, low in area D about 1/3 the way from the road. There seem to be Two Groups of birds, some swirling fairly close + streaming back & forth over island; others are R. G. Newman 1966 Sand-Johnston January 19 far out and in greater numbers, apparently do not come in to land as early as the former group. Perhaps latter are the first arrivals, which now form a cohesive unit after perhaps having built up to a number which could trigger a new phase of behavior. There was no moon while we were out and the birds seemed to be holding rather well. Also, they are down over a large area, including area 13 and area D between roads shore. January 20 Same routine as yesterday. Only 3-4 Blue-faced present on #6 guywire base in A.M. Banding 2030-0015, Total 500 Sooties. We worked the east side of the Xmitter building, found the birds much more edgy than on south; finished on South. Saw two Sooties standing on dead ones, either outbacking or attempting copulation. January 21 Hourly counts on Sooties & Frigates today. Summary: Redfots decrease sharply right around sunrise, remain fairly constant thereafter until evening influx between 5-7, though much shifting around was noticed from about 4 P.M., Browns concentrated on hill until about 8, then drop off until 1200, then remain steady until 1500, mainly on guywire bases & pilings; increase again between 4-5 P.M., coming back to the hill until 6, then moving back out to platforms & bases, almost exclusively immatures in colony site during the day. Some bill-fencing noted in 9 P.M.