Scott said, "All birds are definitely "reportable" to eBird, even the most common. That's how we can ensure they stay common. If you use a number for the drop let's go with the vetted consensus of 85-95% throughout their range since the mid 20th century. The high number I said is what I've thought over time considering a number of factors - more my opinion because yep, we don't have the data we sorely need. Whatever the real number it's almost semantics..it's an insane freefall for a North American bird. People can help by eBirding them whenever they find them. That's how they should report the species so that all of us, collective scientists around the world, can use the data. Our RUBL website is: http://rustyblackbird.org/"
These birds will feed on seeds and cracked corn, according to Scott. Please, if you see any of these birds, report them immediately to ebird.org and the Rusty Blackbird group. We can't let this species disappear like so many are. It is free to join and you would be doing a great service in becoming a citizen scientist.