Date: 6/4/18 11:05 pm From: David Bailey <davidcbaileyoregon...> Subject: [obol] Re: Varied Thrushes breeding in the Coast Range (was: Some Recent Coos/Curry Birds)
I meant to describe the habitat of the single Varied Thrush nest I had found as being in a narrow older-growth stream buffer of multi-storied canopy and some very large but not terribly ancient sitka spruces,but surrounded by reproduction industrial timberlands.
On Mon, Jun 4, 2018, 10:59 PM David Bailey <davidcbaileyoregon...> wrote:
> Varied Thrushes are common breeders throughout the Northern Oregon Coast > Range. I conducted predawn through dawn surveys for Marbled Murrelets in > the North Oregon Coast Range between 01 May and 01Aug for six seasons. > These surveys were all within approximately 20 miles of the coast between > Newport and Astoria. I do not recall a single survey station where Varied > Thrush was not a species I detected on more than one station visit. We > surveyed each station usually seven times a season. The protocol was that > the survey began 45 minutes prior to sunrise. There is a predictable order > to the first calls of expected species. Varied Thrush is one of the first > predawn callers, but they cease to call at sunrise or before. They are very > stealthy. I did encounter a single active nest with chicks about seven > miles up the Necanicum River one season, though had I not flushed the > parent off the nest I would not have known the birds were there. > > David > > David C. Bailey > Seaside, Oregon > >> >>