What is this thing

So this has been a week, the week started with a lot of noise and balloons flapping around in the wind, a lot of bipeds walking around. Turns out it was foodgivers birthday or something.
They left, i had a taste of pie.

The next day a lot of ruckus and drilling in walls and while foodgiver was doing that this green thing was crawling on the gravel. No clue what it is, i licked it, didnt turn into a prince. After i turned my back to it it disappeared.

Then a lot more noise started... now my favorite hiding/sleeping spot is being de-carpeted...


( A1 guesses the caterpillar is a Smerinthus ocellata )