Date: 11/12/17 11:34 am
From: Kristine Lansing via va-bird <va-bird...>
Subject: [Va-bird] Great Falls NP Bird Walk 11/12/2017 (Fairfax County)

Following is the count from Sunday's weekly bird walk at Great Falls National Park, which identified 34 species and included 9 participants.  Worthy of mention were sightings of Buffleheads and Common Mergansers upstream from the Park visitors' center.  The highlight of the walk, however, was an exceedingly large migratory flock of Common Grackles -- estimated count of 10,000 birds -- that took literally minutes to pass by (see comment below).  Awe-inspiring.
The walk meets at 8:00 a.m. on Sunday mornings, rain or shine, in front of the snack bar/concession stand of the Great Falls Park visitors' center; it does not take place, though, during electrical storms, strong winds, heavy snows, or when the trails are icy.  All birders are welcome!  
Canada Goose  20
Mallard  30
American Black Duck  20
Bufflehead  30
Common Merganser  8
Pied-billed Grebe  1
Great Blue Heron  1
Black Vulture  4
Turkey Vulture  2
Bald Eagle  2Red-tailed Hawk  1
Belted Kingfisher  1
Red-bellied Woodpecker  6
Downy Woodpecker  3
Hairy Woodpecker  1
Northern Flicker  6
Pileated Woodpecker  5
Blue Jay  6
American Crow  1
Fish Crow  40
Carolina Chickadee  2
Tufted Titmouse  10
White-breasted Nuthatch  2
Carolina Wren  8
Ruby-crowned Kinglet  1
Eastern Bluebird  52
American Robin  10
Cedar Waxwing  24
Dark-eyed Junco  1
White-throated Sparrow  15
Song Sparrow  12
Northern Cardinal  6
Common Grackle  10000    Estimated count of an exceedingly large migratory flock of grackles, flying in close proximity to one another and often in synchrony.  The main body took literally minutes to pass by our group, yet more grackles continued to follow.  Although other species might have been among the flock, participants observed only grackles, aided by a spotting scope as well as multiple binoculars.
American Goldfinch  18

View this checklist online at

This report was generated automatically by eBird v3 (

*** You are subscribed to va-bird as <lists...> If you wish to unsubscribe, or modify your preferences please visit ***
Join us on Facebook!