Answers are grounded in this paper and cite their sources.
Maynard's red-wing blackbird, Agelaius phoeniceus floridanus Maynard, is often considered highly injurious to sweet corn, field corn, and other grains in south Florida. Stomach contents analysis supports this contention. The birds are also highly insectivorous. Among the more injurious insects eaten by red-wings in substantial numbers are elaterid beetles, fall armyworm, corn earworm, ants, weevils, southern green stinkbug, and grasshoppers.
No takes yet. Share an insight, caveat, or question.
Genung et al. (1976) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: