Monday, December 28, 2020

Warbler Guy, how do I know if warbler migration is strong? Migrating warblers are more dense on some spring days than other ones?

Good question, Hector (in Toledo, OH)

One that I recommend:
(with the following pictorial graphic a past example from its web site) 

At the above link, you'll read about the current week's presence of migrators and predictions.

It is a great resource, given the BirdCast forecast highlights migrant species that you can expect to see near where you live (and elsewhere in Ohio) — in addition to several USA regions: Upper Midwest and Northeast; Gulf Coast and Southeast; Great Plains; and West. 

Regarding your question, depending on the season (and several other factors), Birdcast can help you anticipate the density and abundance to expect on an upcoming birding outing. For example, a large arrival of transient migrant songbirds could be expected for your outing, if the red/purple colors are present just south of you in the spring while a south "Gulf Stream" wind occurs. In turn, this push may result in fine birding the following morning after you view this development (at Birdcast).

I hope this answer helps you.....Feel free to float me more questions at or visit my web page for more migration information related to "Bird Arrival Times (Via Migration) For Marin Co. (where I live in the San Francisco Bay area) at (choose the "Birding Links" pulldown menu and click on the above category: "Bird Arrival Times".

As for my birding tours that I continue to host while employing several social-distancing methods, details are noted via the "Birding Tours" section at my web site (

Regards and Happy New Year to you and all my followers.....Daniel


Thursday, December 10, 2020

Warbler Guy, is it unusual to see wood-warblers at backyard seed feeders? Wood-warblers at feeders I can expect to see?

 Jerry (in southern Michigan).....Great questions. 


In your area this time of year, I'd expect potential seed feeder sightings from a lonely, uncommon Pine Warbler or Yellow-rumped Warbler.

In the West along coastal California, it's not common, but Townsend's Warbler could show up along with Yellow-rumped.

Yellow-rumped subspecies in the lower 48 states —both Myrtle and Audubon's — are able to digest waxy coatings on seeds (such as privet and wax myrtle berries), unlike most other wood-warbler species....and they also seem to have hearty digestive juices to process seeds (as does Pine).

Otherwise, I have to admit in my 40 years of birding, I've never seen any other species at seed feeders.....though nectar feeders sometimes coax Cape May Warbler, among others.

As an FYI, I'm soon leading a tour to Bodega Bay, so I'll stop at Diekmann's Store in this town. Below its foundation on the adjoining hillsides that slope downward toward Bodega Bay, the understory this time of year, typically attracting wood-warbler species such as Townsend's (non-breeding resident) Orange-crowned (breeding resident, with some "over-wintering,") and/or Yellow-rumped Warbler (primarily, the Audubon's subspecies: Setophaga coronata auduboni with S. c. cornonata (Myrtle subspecies of the Yellow-rumped Warbler).

Bodega Bay, by the way, is one of the most popular birding destinations for the birders I lead on tours throughout central and northern California.

Thus, feel free to see the "Birding Tours" section of my web site:

Regards, Daniel Edelstein

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