Bethany Brookshire

Red-breasted nuthatches coat the edges of their nests in sap, keeping out pesky squirrels or other birds! By @rheisman.bsky.social

But wow can you imagine getting all this resin and spreading it and then trying to get it off your BILL with no HANDS. URGH. https://www.allaboutbirds.org/news/why-nuthatches-coat-nest-entrances-sap/

Why Do Nuthatches Coat Their Nest Entrances With Sap?

A simple series of experiments looked into why Red-breasted Nuthatches use sticky conifer resin to defend against nest predators and competitors.

All About Birds
Mar 25 at 2:32pmWeb