Posted by: woodcreeper | September 6, 2008 @ 9:11 am

Birds move behind Hanna

With Hanna now cruising up the eastern seaboard last night, northwest winds dominated Florida and caused moderate to high levels of migration across the state. Here’s the radar from 7:00pm last night through 8:30am this morning (yeah, the power went out during the storm and I missed my wake-up call).

Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation.
Base Reflectivity image from Key West, FL Base Velocity image from Key West, FL Base Reflectivity image from Miami, FL Base Velocity image from Miami, FL Composite base reflectivity for the Southeastern USA

Judging by the composite image, the bulk of migration occurred over the southeastern US, including northern Florida. A good push could be seen off the Florida Panhandle, into the Gulf, while migration over the rest of the state was less intense. As for south Florida, the strong west winds last night will mean increased bird densities along east coast hotspots this morning, including, but not limited to Cape Florida and Matheson Hammock. Another big push into the Keys should mean good birding throughout the island chain as well. Hit me back with your field observations when you get a chance.

Good Birding,


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  1. There definently were birds dropping in at sunrise at Cape Florida. The radar suggested that they flew all night long, and the flocks that formed today were very quiet; just busily feeding. Most captures were moderate in fat load. 41 new birds banded and an OVEN return from 06 or 07. The regular Caribbean migrants:AMRE,NOPA,PRAW, WEWA, BAWW predominated. Did band a WIFL-heard it calling earlier. Very hot day today, and still most of the morning.

  2. Today we had a great day at the SFBO! Michelle pretty much covered the birds but we wanted to add that we saw our FOS TRES and BOBO. Thanks again for your dedication and for providing such and awesome tool for birders interested in bird migration. You Rock!!!

    Nature is Awesome
    Angel & Mariel

  3. Here is what I personally saw at the TAS walk today at Matheson Hammock for migrants:

    Eastern Kingbird (1)
    Yellow-throated Vireo (1)
    Blue-gray Gnatcatcher (~26)
    Northern Parula (1)
    Yellow-throated Warbler (3)
    Prairie Warbler (7)
    Black-and-white Warbler (1)
    American Redstart (2)
    Worm-eating Warbler (2)
    Ovenbird (5)
    Northern Waterthrush (1)
    Common Yellowthroat (2) FOTS
    Summer Tanager (1)


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