These are my two favourite Doodle Pattern Tiles! I've seen some really fun designs done with the owl in particular. Kids can fill in each section of the design with their choice of doodle or pattern, using black and white pen or a mixture of colours.
Doodle Pattern Tiles - Creatures 4
Here's another circle of pretty owls to colour in. There are so many lovely details on these! I'm fond of the sleepy owls...
Here is a lovely "parliament" of owls to colour in, with all sorts of pretty details to keep you busy.