Reporting
We understand! Here is a very

We understand! Here is a very helpful page on how to deter redwing blackbirds from your sweet corn:

http://extension.umass.edu/vegetable/alerts/preventing-bird-damage-sweet-corn

What often is most effective is a combination of visual and auditory deterrants. For example, combine scare-eye balloons with auditory repellents like shellcrackers or distress calls.