There is only one road where I can travel and I am harassed by this vicious enemy sometimes 4 times a day (I go out and back in the morning and again in the evening). While this is not me here is what the vicious attacks look like:
Advice?
Advice?
birds are jerks.
Clearly they are running a protection racket and you are not paying your dues.
Shotgun.
Falcon.
Reminds me of a crow in a garden where I used to volunteer. He knew I was usually good for a peanut or two but on occasions when I’d neglected to bring treats, he’d fly up behind me like that and whack me in the back of my head with his belly. I miss him. Or her, as the case may be.
Now, if you’re dealing with a red-winged blackbird like the guy in the video, you need to know they are highly protective of their young 'uns and often see threats where none exist. Like a human being ignorantly and nonmaliciously bicycling through their territory. Fortunately, the kiddos should be leaving home soon and the daily bombings should cease by then. So just hold on a little longer or…or…I just got a brilliant idea!
Glue one of those plastic owls to your helmet. Now that seems just the ticket, don’t your agree? More so if you are not bicycling and are on foot. (Well, I’d pay to see it, at least.) 
OK, a little more seriously, I wonder if tying a mylar balloon to the back of your bike would keep the little so-and-so at a respectful distance?
Give a hoot. Get an owl.
ETA: Damn, ninja’ed. And by a crow, too.
I’ve had a few birds buzz me while I was riding my bicycle. Once noticed a big shadow on the ground and looked up to see a bald eagle just about 20 feet over my head!
Chances are the bird is defending its nest. The problem should go away once the chicks fly away - until the next time.
While birds could be bad, I’m more worried about squirrels, rabbits, and other ground critters getting under my bike wheels.
Sometimes I wish the Straight Dope had a “Like” button.
Shotgun propelled Falcon.
Indeed. 
Or an F-16 Fighting Falcon with a loadout of Sparrow missiles…
This is the weirdest version of The Untouchables I’ve ever seen.
Not sure if the owl is the way to go.
Angry owl terrorizing people in South Carolina.
http://www.islandpacket.com/2015/06/22/3805933_angry-owl-attacks-again-in-beaufort.html?rh=1
In Melbourne, people stick cable ties on their bike helmet.
No consensus as to whether it works. Looks marginally less ridiculous than a plastic owl.