Several months ago we began filling our hopper-styled feeder with hulled sunflower (ie germ without shell) rather than black-oil sunflower.
To our surprise (and delight) Bluebirds are now enthusiastically and regularly visiting the feeder. I understood that Bluebirds were insect, fruit, and worm-eating birds. Is this just opportunistic behavior of a species that may have a bill unsuited to stripping hull from black-oil sunflower?
Has anyone else had a similar experience?
Jay Jones
Derwood, MD
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