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Photo#141204
Pipe Organ Mud Dauber nest? - Trypoxylon politum
Copyright © 2007 Elliotte Rusty Harold

Pipe Organ Mud Dauber nest? - Trypoxylon politum
Brooklyn Botanic Garden, Kings County, New York, USA
August 29, 2007
I've seen Pipe Organ Mud Daubers repeatedly in the area, though this is the first time I've noticed a potential nest.
Contributed by Elliotte Rusty Harold on 29 August, 2007 - 9:33pm
Last updated 12 October, 2007 - 6:46pm

Yes!
Wow, a perfect one, too! No emergence holes mean that all larvae are still developing inside. Please leave it to overwinter, and remove it once everyone has left (should be about 3-4 occupants per "tube").
… Eric R. Eaton, 30 August, 2007 - 3:20pm

 
Over winter???
When I see these nests, about 3 weeks after they get completed I see holes in them where they have hatched out.
… vulgaris, 30 August, 2007 - 5:29pm

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