What's eating my oak tree leaves?

[oaktreeguy]

Last year we had a few brown hornworms devour a small portion of a 12-15' tall oak with 3" trunk.

Over the winter it seems something is still munching on leaves - much of the tree has been comsumed. But I don't see any caterpillars. Could it be anything else? They ear the entire leaf, stopping half way down each leaf's leader twig before reaching the branch.

Thanks!

 

[ironman_gq]

Pictures?

 

[oaktreeguy]

Will try tonight. Seems you can't upload pictures but only link to them by url?

 

[ironman_gq]

have to use an image host to get them up here

 

[sb47]

have to use an image host to get them up here

I use tiny pic to convert pics for forums.

 

[Marine5068]

Here are some insects that eat oaks.
http://homeguides.sfgate.com/insects-eat-oak-tree-70193.html