Percy The Park Keeper is a British Animated Series Based On The Books by Nick Butterworth.
A US Dub of the show was only released on VHS, Only A Small Clip Of The Show where Percy says Hello to a Robin was featured in a Crayola Video Trailer which is up on YouTube.
It was aired on PBS Kids Sprout (Now Universal Kids) from 2005 to 2009, It is unknown if the channel aired that Dub or not.