This video from the USA says about itself:
31 August 2016
Who’s that hiding behind the Perky-Pet® feeder on the West Texas Hummingbird cam? It’s an Acorn Woodpecker that has stopped by for a quick dose of nectar.
In addition to stealing from hummingbird feeders, these aptly named individuals work communally to store up to thousands of acorns inside individually-drilled holes within designated “granary” trees.
Dear Kitty. Some blog 
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Hi there, I’m a regular viewer of West Texas Hummingbird feeder at Cornell and being a bird lover in the UK I’m learning so much about the captivating Hummingbirds and their behaviour. Only yesterday I was entertained by larger black and white birds with red caps making several failed attempts at gripping on with their toes, they soon figured it out, but not before giving me a few giggles slipping off! I thought they might be woodpeckers so thank you for answering this for me and for posting such a great picture! Woody is a cheeky but clever little nectar thief for sure 😊
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Hi Laura, thank you for your comment! Acorn woodpeckers are a bit different from woodpeckers in the UK, though related.
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