Black Swifts often travel great distances seeking a good food supply. If any are migrating now they would be northbound.

Four to five thousand Vaux's Swifts in the Wagner chimney last night.

Larry Schwitters
Issaquah
On Jun 17, 2014, at 11:10 AM, Carol Riddell wrote:

> Black Swift is a code 4 species for Edmonds, last seen on July 5, 2010, in large numbers over the marsh. This morning I was standing around the Point Edwards retention pond with Dennis Duffy and Ted Peterson, watching Red-winged Blackbird dads feeding youngsters and a Gadwall hen herding a couple of chicks around the pond. It was cloudy and cool, as the weather has been for the last couple of days. We looked up and saw two Black Swifts moving over the condominium buildings. We started turning around slowly and saw at least 20 birds moving from north to south, doing some hawking but mostly moving south. This was at 10 a.m. We walked back down to our cars on Pine Street near the Willow Creek Hatchery and watched a second wave of 14-15 Black Swifts moving south at 10:15. We also saw two Vaux's Swifts. If you are along or near Puget Sound in Seattle right now, look up and you might see this swoop of swifts.
>
> Pete Dunne's Essential Field Guide Companion, published in 2006, notes that this species migrates south from late August to late October. As knowledge of swifts is still being acquired, we wondered if those dates for fall migration might become a little more fluid. Ibird Pro states that collective nouns for swifts are "box," "flock," "screaming frenzy," and "swoop." I like the alliteration of swoop of swifts. I have two photos embedded in this eBird checklist: http://ebird.org/ebird/view/checklist?subID=S18817658
>
> Carol Riddell
> Edmonds, WA
>
>
> _______________________________________________
> Tweeters mailing list
> Tweeters at u.washington.edu
> http://mailman1.u.washington.edu/mailman/listinfo/tweeters