Thanks David! This is a great compilation. It is really entertaining to 
watch all of the local birds in Loveland/Fort Collins hanging out at the 
intersections waiting to swoop down on our miller friends. The current 
flight also happens to be a boon to Flammulated owls and Black Bears.

Michael Tincher
Loveland, CO

On Tuesday, May 23, 2023 at 9:34:13 AM UTC-6 DAVID A LEATHERMAN wrote:

> Here is a composite of just some of the birds eating millers in Lamar over 
> the last three weeks.  Molting male Baltimore oriole, black-headed 
> grosbeak, brown-headed cowbird (scavenging a pile of dead millers I think 
> somebody dumped out of their RV onto a dirt road within Hasty CG), 
> Lincoln's sparrow, Bullock's oriole, brown thrasher, Army Cutworm adult 
> (THE miller), prothonotary warbler, white-crowned sparrow, yellow-headed 
> blackbird and yellow-rumped warbler.  Not great photos, highly cropped, but 
> good enough to document the phenomenon.
>
> Some of the comments I got to yesterday's post asked if birds somehow 
> follow the miller migration.  My take would be they travel their general 
> migration flyways.  What they encounter along the way no doubt alters their 
> schedule.  In other words, they get on the interstate.  They get off the 
> road periodically to rest (mostly where there are trees).  If there's 
> water, they drink.  If there's food they eat.  If there's lots of food, 
> they maybe stay for days.  No different than us.  An exit with no services 
> is maybe nothing more than a place to pull off and nap.  The availability 
> of services can mean a different itinerary.  Given the variability of 
> miller populations from year to year, no way the birds can no what they'll 
> encounter starting out, but being the adaptable, opportunistic creatures 
> they are, they know what works best when they come across certain 
> circumstances.  
>
> Dave Leatherman
> Fort Collins
>
>

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