Larger Blue Jays (American Blue Jay): Rollerfeeder is effective at preventing most larger blue jays – smaller scrub jays can likely adapt to the feeder..
Cowbirds: Effective against cowbirds.
* Starlings: Effective at preventing Starling – see below note.
* Red-winged Blackbirds: Mostly effective – see below note. See video below.
Notes:
Generally speaking the larger the bird the more effective Rollerfeeder is in preventing them. Crows and other larger birds, Rollerfeeder is typically 100% effective at keeping them from pilfering seed. Birds closer in size to a cardinal such as Starlings and Red-winged Blackbirds can land on the feeder but they tend to flutter and flap their wings and give up in a short time. There is a very fine line between allowing Cardinals and preventing the smaller nuisance birds like Starlings – the easier a feeder is for Cardinals the easier it is for birds similar in size like Starlings and smaller blackbirds.
Although the feeder is effective against larger nuisance birds, we do not guarantee 100% large-bird proof due to the wide range and types of larger birds out there. Please read our testimonials regarding the prevention of large nuisance birds.
If you have flocks of nuisance birds – use black oil sunflower seed in the shell and block one side of the feeder this will help prevent them from counter balancing on both sides.
