Next day...more action! Over the space of about 6 hours I witnessed about 10 events just like this.
Some Mud Daubers favour spiders, while others use crickets as food for their young. This one caught and delivered only green caterpillars. The visits to the nest were very rapid, so there was little time to make the shots.
This is not a good image, but I show it so you may see how she carried the grubs to the nest...positioned so they can be quickly fed into the capsule opening.
And, here is a tiny video to illustrate how she fed them into the capsule...I feel it gives another clue to why she was so careful about building the fluted opening.
|camera||Canon EOS M|
|exposure mode||shutter priority|