The nests in this video look similar to the variable sized nests we use made of bamboo. It’s hard to identify the materials used in these nests.
http://video.google.com/videoplay?docid=2487381482109804
Another video:
http://www.youtube.com/watch?v=HQaKKSNQ1Qk
In this video of a bumblebee nest notice the queen appear on the right. She appears to be laying an egg. Right now queen bumblebees are pollinating our earliest blueberry blossoms but it is the young worker bumblebees that we really rely on to pollinate later varieties.
