Hi Tweets

Joseph Buchanan writes:

> Several sites in the two bays support the
only appreciable numbers of knots in the Pacific Northwest.

With respect, I would add the passage site of northeastern Boundary Bay in
Delta, BC, Canada where, over several years in the 1980's and early 1990's,
consistent personal site-observation established not only that this site was
an irregular site for northbound migrants of Red Knot **Calidris
canutus* *presumed
race* *roselaari**---though given the then-contemporary paucity of
observers, this irregularity may have been merely an artefact of
coverage---but was also a irregular site for over-summering non-breeding
(probably Alt 1) birds and a regular site for southbound breeders and
juveniles.

Given the ease of access to the Boundary Bay sites compared to Gray's
Harbour sites, particularly that of the location of the 112th St. Spit
(approx 1km east of the S end 112th Street) where a view of northeastern
feeding flocks in Mud Bay is easiest on the low-to-rising tide, the
diminution of the species' population in its Pacific component should be
most apparent by its absence in its southbound component, though
coverage-artefacts may influence its local status in both directions.

Michael Price
Vancouver BC Canada
loblollyboy at gmail.com