what flock was that? Larimer County

[ronbco]

had a flock of many hundred slowly stream high over my house west of Berthoud yesterday

they perhaps were heading to Dry Creek Res which is just a mile north of me

so, yes they were heading north

they were high enough that I could not pick out any field markings and it is driving me to distraction wondering what they were

the sun and their vector was such that all I could make out was: smaller than sandhill and canada, bigger then mallard/duck, no color except perhaps white on the back/underside, chunky body with a bit of an extended neck...

they were silent

flew in somewhat disorganized V's, needed steady, but smooth, flapping... no gliding

could there be a flock of snow geese that large in the area?

Ron Bolton

Berthoud

[Nathan Pieplow]

A flock of gulls sounds like a good bet. This time of year, I see large flocks of Ring-billed Gulls heading northwest over my house toward Boulder Reservoir in the early evening, on their way to roost for the night.

Nathan Pieplow

Boulder

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[George Cresswell]

My guess is Snow Geese which often moves in flocks of thousands.

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