Pollen: too much of a good thing sometimes.

What is this strange yellow stuff on a hazel leaf?  Have a guess before you scroll down.

At this time of year pollen is a vital food for bees.

This Buff-tailed Bumblebee has bulging pollen sacs and a mite.

A smaller solitary bee can get a bit overwhelmed with pollen.

 On a hazel leaf it can scrape off unwanted pollen with two or more of its six legs.

 After a good scrape a pile of pollen is left behind on the leaf.

 Just need to clean up the head now.  Click the video for the action.

The pollen that was scraped off initially.