Alaska field notes, v4438
Page 183
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Transcription
JPMycers 1979 Calidris melanoto Grid 1, NARL, Barrow, North Slope Borough, Alaska 18 June When I was last on the plot (12 June) C melanoto was not very active - see journal. That has picked up somewhat, and seems to be (is) related to the passage of small flocks of 9 melanoto headed ENE steadily, flying low over the tundra. So we see this movement again. - saw at least 30 88 in singles or up to flocks of 6 flying 19 June C melanoto movement continues. It also looks as if there are quite a few unattached 88 looking about. 2 88 in Grid 1 [neighbors around (5,2)] are re-negotiating boundaries or one of them is currently himself into the array. One very striking display seen 3 times - the two 88 shown along the border + rise vertically to 75 m+ in the air. Incredibly similar to Tryngite tandem border high flight. 20 June all the activity around (5,2) has slowed down. At least 2 88 on grid 1 are messing with localized 88. But decent photos of a 88. 88 flights continue. Grid 4, NAKI, Barrow, Alaska 21 June So this is where they all are! See Journal, tape log. On grid -1 from 0730-71500 too tape + photographs melanoto. It is the biggest concentration of melanoto I have seen since 1975. Standing by the (8,3) station I can listen to 4 88 hooping within a 200 m radius. Each of them has 1-2 88. Activity is intense + constant. I estimate territory sizes here are <2 ha/territory. But the concentration is not area wide, as indicated by notes above from Grid 1. It picks up as you pass east over Caroline Ridge + get into the low central polygon/pond area by Transect 3 & Grid 4. It continues out over the Caves marsh through which Transect 9 runs, and goes out along Transect 10. It appears to be a