Date: 2/9/17 8:34 pm
From: Joey Kellner <vireo1...>
Subject: [cobirds] Re: Dunlin - Interspecies friendship?
I don't think the term "friendship" (Dunlin and Killdeer) or "dislike"
(Purple Sandpiper and Wilson's Snipe) apply at all. The birds are where
they are/were due to the three basic needs (food, water, shelter) being
satisfied. There was no other habitat nearby that satisfied the needs of
these birds and therefore they were in close proximity to each other. The
"dislike" could just be two species competing for the same resources...the
victor gets the spoils.

Joey Kellner
Littleton, Colorado

On Thursday, February 9, 2017 at 11:13:54 AM UTC-7, Gregg Goodrich wrote:
> The Dunlin at McLellen continues to hangout with the Killdeer. This is my
> third trip and each time they have been together. Is their a mutual benefit
> to this relationship? I would think they could both easily find food
> without the other. There are coyotes at the lake. See photo in checklist.
> Maybe 2 pair of eyes are better that one to help alert to danger.
> Then there is the Brandt and the Greater White-fronted Goose that seem to
> always be together at the Lone Tree golf club. Certainly there are plenty
> of other geese to sound an alarm.
> Maybe it is just a need for companionship. And since their same species is
> not around, they have found another species. Other examples of interspecies
> friendships?
> Gregg Goodrich
> Highlands Ranch
> eBird Checklist – High Line Canal Trail--McLellen Reservoir periphery,
> Colorado – Thu Feb 09, 2017 – 11 species

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