I biked around this sprawling park in SE COlumbus yesterday morning to hunt for early migrants.  There was a subtle movement early in the morning, but everything tapered off once the cicadas started shrilling, around 10.  Mny of the migrants now are birds we've had all summer, like flycatchers, so it's more a matter of place and number than any startling reaction to birds we don't see on a regular basis.  Highlights & lowlights included:

shorebirds - hardly any, since most of the ponds along the bikepath here are still surprisingly high.

raptors - a juvenile BROAD-WINGED HAWK along the Confluence Trail was too early to be a true migrant (since this psecies doens't usually migrate through until September), so it must have been a wanderer

Hummingbirds - small numbers at most spots, they seem to be gearing to go.  Many of them were chasing bugs, a sign of pre-migratory fattening.

Flycatchers - good numbers of Pewees (12+) and Acadian Flycatchers (5+) inidicate that these species may already be on the move.  They're certainly cryptic migrants, since they don't make nocturnal calls and don't accumulate in large numbers anywhere here.

Swallows & Swifts - most of the swallows were absent, but small flocks of swifts were at several stops.  This correlates with the increased numbers I've seen at roosts in gahanna and Westerville recently.

Thrushes - 2 Wood Thrushes were still hanging around the Confluence area, where they nest.  No migrant thrushes have appeared yet

Warblers - nothing other than resident Common Yellowthroats.  The resident yellow-throateds, Parulas, and Yellows appear to have departed.

Blackbirds - a sizeable flock of 500+ Grackles flying out of a roost near the Confluence area was yet another sign of the advancing season

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