This lovely, decorated owl face was originally designed for Day of the Dead, but I think the kids would enjoy tracing over the dotted lines and colouring in some of the details at any time of year.
This lovely owl tracing page has lots of lines for the children to trace over. Younger children might like to trace between the dotted lines with a large crayon or pen.
This owl mask colouring page was designed for Day of the Dead, when you will see colourful versions of this sort of mask on display - but it makes a fun activity for any time and of course can be coloured in browns, blacks and creams for a more "natural" owl effect.