Dennis,

How recently has the Vaux' swift use of chimneys been taking place?

My family's place - near Ankeny Hill exit off I-5 near Jefferson, Oregon
- was built in 1855. Family lore has it that the "Chimney Swifts" moved
in the following year, and my Dad reports that there are swifts going
into the chimneys again this year.

On Mon, 5 Jun 1995, Dennis Paulson wrote:

> I have them over my house in Seattle just about every day, and
> clearly they have been able to adapt to chimney life, albeit more recently
> than Chimney Swifts.

> Any other anecdotes, impressions, or data out there?