Bee on Zinnia, Squirrel on Screen

A Metallic Epauletted-Sweat Bee to be more exact. These beautiful little bees are important pollinators! They look like little green jewels to me! In the *extra...squirrel licking the screen. I've blipped this phenomenon several times in the past. 'Can't Hold Her Likker' I still don't know why they do it. Most likely to ingest the green algae that grows on our screen room this time of the year. I've  never seen them on any other house screens. Only one at a time partakes and it's always a female. The mystery continues...