I led 3 birding trips as part of the bioblitz organized by National
Geographic at the Rock Creek NP.

I don't have the exact total for bird species sighted in a 24-hour period,
but it is between 80-82 species in all. A total of 20 warbler species were
observed by participants. Here's the list:

Northern Parula
Tennessee Warbler
Yellow Warbler
Chestnut-sided Warbler
Magnolia Warbler
Cerulean Warbler
Cape May Warbler
Black-throated Blue Warbler
Black-throated Green Warbler
Blackburnian Warbler
Prairie Warbler
Bay-breasted Warbler
Blackpoll Warbler
Black-and-white Warbler
American Redstart
Ovenbird
Louisiana Waterthrush
Common Yellowthroat
Hooded Warbler
Canada Warbler

Other notable sightings were:

White-eyed Vireo
Philadelphia Vireo
Yellow-throated Vireo
Gray-cheeked Thrush
Swainson's Thrush

All in all, it was a very satisying effort.

Dhananjaya Katju
Washington, DC


On 5/18/07, Scott Baron <> wrote:
>
> I led a bird walk at Rock Creek Park in connection
> with the Bioblitz there.  I wasn't expecting much with
> a 4:30pm start time but the birds were pretty good.
> Lots of vocal SWAINSON'S THRUSHES and BLACKPOLL
> WARBLERS.  A few YELLOW-RUMPED WARBLERS, too.  Perhaps
> RED-EYED VIREOS are still moving through, as one
> locust tree held 3 of them.
>
> These birds were mostly in between the Nature Center
> and Glover Rd.
>
> Scott Baron
> Fairfax, Va.
>
>
>
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