Crossin, Richard S., 1965-1966, 1968
Page 121
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Transcription
R.Grossin 1768 Great Frigatebird 14 oct. 68. Storm, we were hovering in the concentric resting area, on the SW side of nesting at 23.30. Many adults were present too, but these started to fly as I was about through with the immature count. 15 oct. At 0930 there were 51 immatures in the above plot (Plus 8 at 9 and 5 ad 8 or nests). Thus 17, or 25% of the birds in this particular group were leaving the island to feed and were probably independent of parents. 24 oct. An immature flew our campsite, gaily a half-year old, only term, fled off with its father sometime saw there and succeeded in pelting it. The chick of the next one in mid-air. Then after a while the record we landed and after about 15 minute I attempting to swallow the chick, finally succeeded. For many minutes. By doing so, the soft term chick pestered out of the frigate mouth. The guys there in camps have mated many seasons. When the frigate (Descendants, Breeder as they are the Common as stock camp) have yielded my soft, tens and dropped them from some height either our land or out over the water. Next count made today between 1600 - 1800. At this time the birds which go out to sea are not back yet and permanent birds in a pretty settled manner of count went as follows: All those which could fly off or fly when disturbed were considered juveniles. Any feathered young were those which for all practical purposes had no down but were reluctant to move. R.Grossin 1768 Great Frigatebird Other Island Note: Young were there that had considerably grown on the back region, but were otherwise quite feathered, rest are self-applying. One egg was laid; chicks just hatched. Eggs: 2 Naked Chick 1 Sdy 14 Mdy 13 Ldy 72 LFy 168 Juv. 247 577 The sample plot SE D camp is of Hall type, slightly 25% of the few birds noted to leave the island in the eastern, then the number of juveniles for the whole would be ca. 369 birds. I shall test a few more compact groups before deciding what I am leaving the island. A naked chick, a small downy was found in no nest. 24 oct. Collected larv samples from 10 large frigate young as follows: ① 72.4 100% Scobirds, ② 77.3 30% Squid, 70% Scobirds ③ 45.3 70% Squid, 30% Scobirds ④ 91.5 100% Squid ⑤ 42.6 20% Squid, 80% Scobirds ⑥ 59.4 100% Squid ⑦ 47.0 100% Squid ⑧ 31.7 100% Squid ⑨ 65.8 30% Squid, 70% Scobirds ⑩ 54.2 100% Squid. 589.7