I started putting out BSFL for the wild birds to eat. To begin with I'm using a white plastic lid tacked onto a fence post. Once the birds get used to taking the BSFL from the lid I'll work on gradually acclimating them to a more substantial feeder.
The small lip of this lid is enough to contain the BSFL unless there is significant condensation. If the sides are wet they can usually get enough traction to crawl up vertical surfaces.
