This all reminds me of when I was down in FLA in October.  I was able to
talk to some of the non-migratory birders about some of the local birds.

One thing I took notice of is the LACK of MODOs in urban areas.  My local
birders contact said that they were being crowded out by the
Eurasians...But only in the urban and suburban areas.  When you leave the
city, MODOs return to the telephone wires.  It seems, if I remember
correctly, the MODOs couldn't compete as well in the urban areas for food
sources.  I would check where they are actually reported on eBird...Might
be something there.

Another thing that comes to mind as I see the distribution maps is they
seem to doing well in the agricultural areas where there is minimal if any
frost...Again probable abundance of food sources.  Kentucky #1 (legal) cash
crop is still tobacco, and generally the grains are produced for farm
animals on sight...mostly corn.  This is true for most of Southern
Appalachia. Very little grain is sent to elavators where most of our
Eurasians have been found.  Also a lot of the corn is still harvested on
the cob, so there is little chance for loss.

A third thing in our case is that we have a ton of small Sparrows, Snow
Buntings, and Horned Larks to eat the grasses and grain spills.

So my thought is that in our case, because we still have a freeze/frost
agricultural area, plus all of the small grain eating winter birds, there
is not enough grain and seed to supply the Eurasian's appetite.

Just my wooden nickle's worth.

Happy birding and God bless,

Steve J.

On Feb 13, 2017 7:45 PM, "Barrett,Robert P" <[log in to unmask]> wrote:

> WHY these doves should persist in this NW-SE range is a mystery, and if
> there was a simple explanation, I expect we would have heard it by now.
> Complex explanations, anyone?
>
> Dr. Bob Barrett
> 216 Crouse Hall
> Department of Geosciences
> at
> University of Akron
>
>
> Teaching three classes Spring Semester 2017:
> Introduction to Environmental Science
> World Civilizations: Latin America
> Geography of Cultural Diversity
>
>
>
> ________________________________________
> From: Ohio birds <[log in to unmask]> on behalf of Bill Whan
> <[log in to unmask]>
> Sent: Monday, February 13, 2017 9:35:53 AM
> To: [log in to unmask]
> Subject: [Ohio-birds] More on Eurasian collared doves
>
> Thanks to all for reflections on your sightings--or not--of this bird in
> Ohio. I recall interesting exchanges in this forum a few years back, and
> you can read about the ever-growing numbers of this introduced species
> in the US.  But not, it seems, in Ohio. We foresaw its future better
> than many western birders.
>         This prolific species entered the US via Bermuda not all that long
> ago.
> You will not find it included in Peterjohn's "The Birds of Ohio," for
> example in the 2001 edition. The birds probably came from Europe, having
> in turn arisen in the far East. They flourished, and spread via a strict
> route aimed northwest: they flew over the Alps and France and Britain,
> then ran out of territory up in Ireland.
>         They flourished in the US too--based on recent releases in
> Bermuda, and
> stubbornly headed in the same direction, ending in Alaska. If you look
> at a good US range map--I'm looking at p. 266 of the National Geographic
> bird guide--you'll see they took a beeline northwest from Florida, with
> little presence northeast; Ohio isn't involved; Indiana and Minnesota
> show light populations, and every state west of there has plenty of Euco
> doves.
>         Recent reports from Ohio birders show that map is still up to date;
> Eurasian collared-doves stubbornly move northwest, and here in Ohio up
> to New England misled doves are hard to find. I recommend Troy Shively's
> post on this species if you're looking for one; in keeping with their
> propensities, the western areas of Ohio have more than the east.
>         Here in Columbus, smack-dab in the center, a few are probably still
> around, but very seldom seen. If you head west, you'll start seeing them
> in Indiana, and by the time you reach Illinois, they'll be yawners.
> Based on what I hear, these doves are even scarcer than they were a
> decade ago, despite all the effusions about their presence elsewhere.
>         Their stubborn insistence on flight direction is unique: we have a
> lot
> of species distributed by north-south and east-west boundaries, but few
> with such a unique SE-NW distribution. We knew about this route ten
> years ago, and it seems to be just as persistent today.
> Bill Whan
>
>
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