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University of Minnesota Extension

Bee blocks

Please observe your block and submit your results twice each month from April to October.

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By recording the dates you see nest-building activity, the animals you see building nests in your block, and the materials bees use to make nests, you are providing valuable information that will help identify the bee species nesting in your block.

When you monitor your block, remember to bring:

If you have questions about what you see at your block, you may contact or post a comment on our Facebook page. Please keep in mind that it will be easiest for us to answer your question if you are able to include a photo.