These are pictures of Organ-pipe Mud Dauber nests. They were found under the Rugged Drive bridge which spans Five Mile Creek in Dallas, Texas.

This location is a good environment for these mud daubers. There is plenty of water and mud nearby, and the bridge provides the shade that will help regulate the temperature of the nests and eggs.

These nests are not currently active, and appear to be relatively old constructs. The holes on the sides indicate that the larvae have pupated and emerged as adults already.

Organ-pipe Mud Dauber - Under Bridge

Organ-pipe Mud Dauber - Under Bridge

Organ-pipe Mud Dauber - Under Bridge

Observations Details

County Dallas
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City Dallas
Date Jun 29, 2013
Time of Day Morning
Temperature Hot (greater than 89°F/32°C)
Weather Clear
Habitat Water-Creek
Type of Behavior Nesting
Gender Mixed
Maturity Mixed
Observer Chris Jackson
Main Article Organ-pipe Mud Dauber Observation Location