Consumption rate: approximately .04lbs of grain per day
Blackbirds will typically feed on the ground with their primary food being insects during nesting season and grain and weeds in the summer and winter months. During feeding, the males and females will split off into separated flocks, with females eating more insects than males do.
Blackbirds are known to cause considerable damage to ripening corn, sunflower, sorghum, oats, and sprouting and ripening rice. This can be very costly for farm and feed lots.