The
cooler mornings this week heralded in the fall passerine migration as far as
I’m concerned. Cool late summer and fall fronts with northerly components to
the winds bring the warblers, vireos, and tanagers into the southern piedmont.
I took
an hour or so last Tuesday to walk around the beaver pond at McAlpine Park with
the sole intent of finding a few migrants.
It soon became evident that it was a birdy morning with several flocks
of noisy Carolina chickadees and tufted titmice working along the wooded
margins. Migrants like to hook up with the chickadee flocks so I always head
right for them when I hear them.
I found
a large birch tree fairly alive with birds flitting through the canopy. Four or
five blue-gray gnatcatchers were conspicuous, flying in and out of the tree. A
sharp chip note revealed a nice male Northern parula warbler. A soft chattering
call let me know a vireo was in the tree, but which one? Shortly a bright
yellow bird with yellow spectacles around the eyes appeared; a yellow -
throated vireo, a bird I’m always glad to see. Soon another showed up right
next to it.
I took a
brief break from scanning treetops to checking the beaver pond itself. Two
great egrets and a belted kingfisher were patiently waiting for a careless fish
or frog to serve themselves up for lunch. While watching these birds I noticed
a red-shouldered hawk noisily flying over and an immature Cooper’s hawk flying
silently just over the wetland shrubbery.
The next
wooded margin produced a female plumaged hooded warbler and an immature
chestnut-sided warbler. The chestnut-sided looks nothing like the adults which
sometimes causes confusion in some casual birders.
So there
were four species that I would call true migrants that morning. A small number
but an encouraging start to the fall songbird migration. In another three or
four weeks I would expect that number to triple or even quadruple. And the
potential for some more interesting or uncommon species will increase too. It’s
time to start looking so grab your binoculars and check out the chickadee
flocks or any small bird you see
foraging in your shrubs or small trees.
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Chestnut-sided warbler by John Ennis |
Warblers in fall plumage can look nothing like the breeding plumages. this is a fall-plumaged chestnut-sided warbler. Note the bold eye ring, bold wing bars, and bright green crown and back.
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Chestnut-sided warbler by Phil Fowler |
This is the breeding plumaged male chestnut-sided warbler. Note the bright colors and bold patterns.