feeding nature

With longer days, many of which have been sunny, albeit cold, greenhouse seedlings have been growing and growing. 
Until Thursday night. Something ate my seedlings! 
78 two-week old kale plants: gone. 
60+ one-week old spinach plants: gone
about 100 two-week old flower plants: gone. 

At least all of these were "early" seedings and I have plenty of time to recover... and hunt!