AllenF, assuming they make it through the winter, I'll be glad to get some shots for you. :)
ArmucheeBee, it's sugar syrup. I was feeding that day and had a ziploc baggie leak on me. I caught about a 1/4 cup of syrup in that dish (actually a plant pot drain) while pinching off the leak, and set it out for the girls while I went inside to transfer to another bag.
Since the girls were out orienting, and it was at the beginning of the dearth, they cleaned it up in about 15 minutes, before any robbers could get wind.