Showing posts with label patrolling. Show all posts
Showing posts with label patrolling. Show all posts

Sunday, August 22, 2010

When Butterflies Attack!!!

Monarch butterflies fighting AMcC

Seen through the rose-colored binoculars of the romantic nature-lover, butterflies are the very embodiment of harmony, as they flutter from one fragrant blossom to another. So how come I came home from work last week to find a brawl in my front yard? Three Monarch butterflies were duking it out, paying little attention to cars or photographers. These butterflies were not just circling each other in a “duel,” they were actually making contact!

Of course, butterflies have to struggle to survive and pass on their genes, the same as other wild creatures. Male Monarchs use a strategy for finding mates called “patrolling.” The male patrols an area, perhaps the top of a small hill were views are unobstructed, looking for females. I use the word look, because although moths are known to find mates through scent, butterflies rely primarily on sight (Boggs, Watt, Ehrlich, Butterflies: Ecology and Evolution Taking Flight, 75). Once the male detects a female, he gives pursuit and tries to mate. If however he encounters another male, he may attempt to drive off the interloper.

I remember spotting a male Monarch in my mom’s garden. When I pointed it out to her, she looked at me suspiciously. “How can you tell?” she asked.

“Well,” I said, still watching the butterfly in my binoculars, “you have to have a pretty good look.” (Bah-dum-bum.) She laughed hysterically. She didn’t even hear me explain that males have a small black scent patch on the hind wing, close to the rear of the abdomen.

I doubted whether I could get a photo of rock-’em-sock-’em Monarchs, but I headed out with my point-and-shoot camera anyway. I snapped off about 20 worthless shots of orange blurs above purple and yellow blurs. Finally, as I stepped up to a cooperative Monarch on my Rough Blazing star, another one dropped vertically into the frame, landing directly on to the first. I actually heard the collision! The first Monarch was definitely a male, but I can’t be positive about the attacker. However, of the three Monarchs I observed over the course of 2 hours, all the ones I saw well were male.

Monarch mayhem AMcC
I shared my photos with the Flickr group, “When Animals Attack!” Mine are the only butterfly photos in the pool.
3 Monarchs in a dogfight over Kirkwood AMcC