They are the primary oak on my place - all the critters love them, but they fall early here so you gotta be ready to hunt them. My trees produce nearly every year and I tend to collect some for the seed swap thread as well. They are small enough many critters, even birds, will eat the acorns. On my place they really like the rocky/sandy soil areas that drain well and like any other oak - they like the sunlight. I can't speak to the leaf out question.....I can't say I pay attention. I do know my oaks in general lag behind everything else, but I can't say I ever noticed my chinks being noticeably further behind my other oaks.....