Subject: [Tweeters] Bird Migration on Radar
Date: Fri Mar 6 12:27:33 PST 2020
From: Dennis Paulson - dennispaulson at comcast.net

Hi Andy and tweeters,

Very interesting to read Cliff Mass's blog. But I expressed puzzlement a while back when a spectacular radar signal was shown in the Florida Keys in late February that people attributed to bird migration. When I lived in Miami for 15 years, the only incoming migrants in late February were Purple Martins and Swallow-tailed Kites, both of which are diurnal migrants and in any case wouldn't give a radar signal like that.

I'll ask the same question here. The only migrants that normally come into this area in early March are swallows and a few Rufous Hummingbirds, which are diurnal migrants. I would expect no movements other than that. Thus I'm still not entirely convinced, unless someone can point out something I have missed. Possibly waterfowl? But of course they also do a lot of their migration in the daytime and would not start at dusk and stop at dawn.

Jim Danzenbaker, you're looking at the sky. Any massive arrivals in your area yesterday?

And what could it be if not birds?

Dennis Paulson
Seattle



> On Mar 6, 2020, at 12:02 PM, tweeters-request at mailman11.u.washington.edu wrote:

>

> Date: Fri, 6 Mar 2020 08:13:19 -0800

> From: "Andy Stepniewski" <steppie at nwinfo.net <mailto:steppie at nwinfo.net>>

> To: "TWEETERS" <tweeters at u.washington.edu <mailto:tweeters at u.washington.edu>>

> Cc: birdyak <birdyak at groups.io <mailto:birdyak at groups.io>>

> Subject: [Tweeters] Bird Migration on Radar

> Message-ID: <8F3E5F20777C418C9048D698D2F3CD1E at OwnerPC>

> Content-Type: text/plain; charset="utf-8"

>

> Tweeters,

>

> Cliff Mass in his 6 March 2020 weather blog documents substantial numbers of birds migrating north from Portland OR on Wednesday night (4 March). Further, he explains the weather pattern that night was conducive for migration, giving the ?birdies? as he calls them, a tailwind.

>

> See ?Weather Radar Shows Spring Bird Migration:? https://cliffmass.blogspot.com/2020/03/weather-radar-shows-spring-bird.html <https://cliffmass.blogspot.com/2020/03/weather-radar-shows-spring-bird.html>

>

> Pretty cool stuff!

>

> Andy Stepniewski

> Yakima WA

> steppie at nwinfo.net <mailto:steppie at nwinfo.net>

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