Birds, Wildlife Herons, They Are Taught To Scratch April 28, 2017 Ted Jennings - TPJ Photography Leave a comment The answer to the age old question !!! Herons, They Are Taught To Scratch – Click To Enlarge Why do birds instantly scratch and preen when they see a big camera !! Why ! Herons, They Are Taught To Scratch – Click To Enlarge Because they are taught to when still in the nest. Share this:TwitterFacebookLike this:Like Loading...