Lest we think that peregrines are the only birds that fight, take a look at this slow motion video of dueling sharp-tailed grouse from Cornell Lab of Ornithology.

Though they don’t have meat-tearing beaks and sharp talons these grouse are doing some damage to each other.

You won’t see this in August, even if you’re at the northern grasslands they call home.  Fighting is an activity that sharp-tailed grouse reserve for springtime courtship.  The males gather at the lek (courtship stomping grounds) and mix it up to prove who’s best.

Click here for a larger view of the video.

(video from Cornell Lab of Ornithology on YouTube)