Watch an angry robin repeatedly dive-bomb a squirrel

Animals can be a bit ... angry in the spring.

Birds are territorial -- and that's especially true in the spring when nests are full of babies.

Check out the video above, sent in by Weather Network viewer Tony Fortunato from Georgetown, Ontario.

In it, a foraging squirrel is repeatedly attacked by a robin.

"The Robin thought the squirrel was getting too close to the nest," reads the video's description.

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The squirrel doesn't seem overly concerned.

Dive-bombing is a common scare tactic birds use during the breeding season. While it looks intimidating, experts say the birds are unlikely to hurt their targets.

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"It may seem like it's an offensive behavior and some people might find it offensive, but it's actually a defensive behavior on the part of the bird," Bob Mulvihill, an ornithologist at the National Aviary told Mother Nature Network.

"...It's all bluff. It works pretty well if you're afraid of them."

If you have a dive-bombing bird in your area, experts say it's best to leave it alone. Nesting periods vary from species to species, but typically only last a couple of weeks.

Once the babies have left, the attacks should stop.

VIDEO: MAMA ROBIN FEEDING HER BABIES