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Interesting. Good closeup.
Is the yellowish residue on the head from recent pollination trips?
The background looks like your palm. Family pet?![]()



I’m fairly new to this…why the liners in your bee blocks?Thanks, yes, the yellow stuff is pollen. Mason bees are messy pollinators, they just belly flop and roll on flowers to load on pollen all over their bodies, to the point that returning from harvest they look more yellow than green/blue/black when leaving their tubes. Messy but highly efficient, they are said to be 95% efficient as pollinators as opposed to around 5% efficiency of honey bees (which carry their pollen on hind legs). A few hundred mason bees equates to several tens of thousands honey bees. Guess I am more their landlord than pet owner, we have several bee units around the garden.
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It's truly mesmerizing to watch them work relentlessly bringing pollen, building mud balls and doing their mason work to create the walls between the sections of their tubes after they fill them with pollen and lay an egg on each. Each bee visits thousands of flowers a day on about on block radius, so it's a buzz of activity (no pun intended). They don't sting, so they are easy to handle and are a kid favorite too.
Hard to ID on the picture @Stonedfish, given size and maybe some white patches on head and abdomen maybe a bald-face hornet? There are also some parasitic wasp that attack mason bee nests, along with much smaller pesky Houdini flies (similar to fruit flies in size) that try to lay their own eggs in the short period between mason bee harvest trips.
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