Date: 4/30/18 11:43 am
From: Stephen Chang <srchang92...>
Subject: [cobirds] Re: RFI -- crossbills and cone crops
Hi Cody,

Is there a protocol/standards that you might suggest that would qualify as
a good cone crop in an area?

Stephen Chang

On Sunday, April 29, 2018 at 6:13:18 PM UTC-6, Cody Porter wrote:
> Hi all,
> I'm here with my annual request for information on the whereabouts of good
> cone crops and crossbills.
> Unfortunately, cone crops over much of the Rockies were non-existent or
> very poor this last year, causing a mass exodus of our usually abundant
> type 2 (ponderosa pine) crossbills to the Great Lakes and Northeast region
> (though it seems there have been several holdouts at feeders along the
> Front Range and even deeper in the mountains). Hopefully as summer
> progresses, good cone crops will develop and crossbills will return.
> As usual, I am particularly interested in hearing about developing
> ponderosa pine, douglas-fir, and Engelmann/blue spruce cone crops. It is
> still too early to detect a developing spruce/fir cone crop, but developing
> ponderosa pine cones should be visible right now. Basically, look for lots
> of small purple cones on ponderosa branches (see attached photo for an
> example, taken on April 12 a few years ago). Come late June/early July,
> spruce and doug-fir will have similar small purple cones all over, if they
> are to have a good cone crop (attached is a not so great photo of that from
> July 6 two years ago).
> Any information (even the absence of a good cone crop in an area) is
> greatly appreciated. The unpredictable nature of conifer cone crops and
> crossbills makes working on them an...interesting challenge, but the
> information you folks have given me over the past few years has made things
> go much more smoothly than I anticipated when I first started this project.
> Good birding,
> Cody Porter
> Laramie, WY
> <>
> <>

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