Date: 3/25/25 6:48 am
From: Tobin Brown via groups.io <tobinjbrown...>
Subject: Re: [NEBirds] Common Crane - Merrick County
I'm a fan of that wild speculation! After nearly 9 hours looking through
cranes this year even when I KNEW a Common was likely around, we had
nothing. That (on top of the needle-in-a-haystack-style stories I've heard)
leads me to wildly speculate that the detection rate could be something
like 20% or lower, meaning there could be 15+ birds. Fun to think about.

I have no science to back this up, but I wonder if climate change could be
bringing their breeding ranges even closer together, causing some mixing
post-breeding. Just for fun I looked at the Sandhill Crane reports in
Eurasia in the past 10 years
<https://ebird.org/map/sancra?neg=true&env.minX=&env.minY=&env.maxX=&env.maxY=&zh=false&gp=true&ev=Z&excludeExX=false&excludeExAll=false&mr=1-12&bmo=1&emo=12&yr=last10>
and there are quite a few, even though ebird isn't really the main platform
over there. Reports in Japan, China, Singapore, Taiwan, and in European
countries like Sweden, Germany, and even Hungary.

Tobin Brown
Lancaster County
402-213-4014
https://ebird.org/profile/NDA1ODIzNg/US-NE

On Mon, Mar 24, 2025, 5:51 PM Jorgensen, Joel via groups.io <Joel.Jorgensen=
<nebraska.gov...> wrote:

> Based on the frequency of known occurrence over the years and the low
> probability of detection and distance between sightings, I would put my
> money on the likelihood that there have been at least 3 different Common
> Cranes in Nebraska so far this spring. The fact that 3 different Common
> Cranes have been detected this spring (assuming my assumptions are correct,
> which is what it is), makes me wonder how many Common Cranes are migrating
> through Nebraska this spring? 5, 8, 12? The great thing about wild
> speculation is I can't be proven wrong. Congrats on the relocation
> originally found by Matt Wieseler.
>
>
> Joel
>
>
>
> ================================================
>
> Joel Jorgensen
>
> Nongame Bird Program Manager
>
> Nebraska Game and Parks Commission
>
> 2200 N. 33
> <https://www.google.com/maps/search/2200+N.+33?entry=gmail&source=g>rd 68503
> | 402-471-5440
>
> <joel.jorgensen...>
>
>
> ------------------------------
> *From:* <NEBirds...> <NEBirds...> on behalf of Tobin Brown
> via groups.io <tobinjbrown...>
> *Sent:* Monday, March 24, 2025 5:42 PM
> *To:* <NEBirds...> <NEBirds...>
> *Subject:* Re: [NEBirds] Common Crane - Merrick County
>
>
> Common Crane relocated at Clear Creek WMA in Keith county! Found this
> morning by May y from game and parks. Not sure what's more likely: a 2nd
> bird, or the same bird traveling 200 miles west, probably the latter.
>
> Tobin Brown
>
> On Sun, Mar 23, 2025, 4:48 PM Tobin Brown via groups.io <tobinjbrown=
> <gmail.com...> wrote:
>
> Another crane, or perhaps the same one, was relocated this afternoon 40
> miles west, near Gibbon in Buffalo County.
>
> https://ebird.org/checklist/S220357025
>
> Tobin Brown
>
>
>
>


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