There is little competition between them and other species, but I would think twice about my feeding operation if I felt it were benefiting significant numbers of Blue Jays, Common Grackles, Brown-headed Cowbirds or Starlings, which rob or parasitize nests or compete commonly for cavity nest sites with other birds.
(Starlings; parasitize; nests) (I; would think; T:twice; about my feeding operation) (Starlings; compete commonly; for cavity nest sites with other birds) (I; felt; it were benefiting significant numbers of Blue Jays, Common Grackles, Brown-headed Cowbirds or Starlings) (Starlings; rob; )
Starlings I Starlings I Starlings
parasitize would think compete commonly felt rob
nests
T:twice about my feeding operation
for cavity nest sites with other birds
it were benefiting significant numbers of Blue Jays, Common Grackles, Brown-headed Cowbirds or Starlings