Alaska field notes, v4435
Page 181
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
J Phlyers 1975 Calidris alpina Transport 1, [51,23 CCS], Gasoline Ridge, Pt. Barrow, Alaska 15 June 1020 - standing beside stake 9 for 1.5 min. when suddenly 8 dunlin flushed within 5 ft of me, began giving distraction display. 4 eggs in nest, which is lined w/lichen + grasses, in a clump of sedge surrounded by hummocks of moss. 16 June followed 2 RB's today see journal, following acutts. saw dis- playing RB (illegible) beginning secondary molt. Grid 3, 8 km S. of NAPL by road, Pt. Barrow, Alaska 8 July first dunlin nests that I had between the last Grid 3 census area (2 July) and today Schannel said he had detected it yesterday. Both RB1 and RB2 have hatched. Behavior of adults in/on contrasts w/ that of incubating birds. First-flue are an inordinate # of trios - probably because when one pair gets upset and begins calling a neighbor (flown) to find out what's up - without being supplanted. It seems appears that the birds will leave chicks and fly toward gun calling at a much greater distance than that at which they would leave the nest. very excited calling, am sharp alarm note given repeatedly. If you continue on forward when they flew in from (presumably near to chicks) they get even more excited - so much so that they appear to be running in place, jumping rapidly from one foot to the other while calling Gasoline Ridge 23 July first dunlins fledged Grid 2 30 July I am detecting a curious association - dunlin appear on my census areas w/ Nivivella dominica and it appears as if they move with them as well. today in the lower portion of Grid 2 I picked up a flock of dunlin foraging in the high polygon area, running both in the troughs but more frequently along the crests. adults and juveniles present, the adults not acting broadly (or protectively). With them were several Nivivella (see grid data sheet). During the cursors I flushed them, the whole group moved off together - flying to another, similar area of the grid - this now) not suggest an association in itself - but recently I've been coming across these two species together more often than I have been encountering them separately.