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Transcription
JP Myers
1979
JOURNAL
NARL, Barrow, North Slope Borough, Alaska
23 June
(cmt'd)
transect totally reached levels unheard of for early june - "like melonotos / ha,
with 8 + 9 equally abundant (in fact & slightly greater than 8). that is unusual,
then in 5 day period #4 (10-14 June) there was a lull that continued through
to last weeks. Finally during this current 5-day period (20-24 June) 88'
shot up to .68/ha + 9 were on the .3's. That 8' density is screwy, because
over the uplands densities aren't that high. It indicates either that there are
non territorial birds being picked up (yes, says McCaffery) or the transects are
yielding an inflated density. Whatever, it is quite a high + quite different
from my previous years. 88 on Grid 4 are still behaving receptively to 88,
and like butt-up. I saw 9 flights to NE beginning 18 June, +
continuing through yesterday.
C. elping - steady as they go. Transect density of .35-.55/ha.
that is like previous years. Grid 1 density may be somewhat high, with
up to 10 territorial elpings on the 33 ha plot. The breeding season is quite
protracted. 2 pairs on Grid 1 must be reesting, as from the 18-20 they
were doing nest cup displays. See phenology notes.
C. bairdii - In the uplands, along the coast, on gravel areas, and on
Grid 1 Baird's are very dense. 0.2 ha/territory, if my data are right
on Grid 1. They are breeding late also. Even now most pairs on the grid
have not finished laying. I can't help but feel that bairdii's spacing
system is more variant than Pteika gives them credit for being.
C. pusilla - as thick or thicker than usual on Grid 1. Also being
found out in the lowlands more than usual. Find wood well come from
the transects
C mauri - While there was almost no sign of mauri throughout the
1st half of June, they are now all over Coastal Ridge + Transect B,
displaying. The gang at Atkasook reports a mid June influx also.