Luis Munoz snapped this picture while bird watching Monday morning. View Full Caption Provided/Luis Munoz

UPTOWN — While out bird watching at about 9:30 a.m. Monday morning near Montrose Harbor in Uptown, an unusual sight caught Luis Munoz's eye instead: a rendezvous between an off-leash dog and two coyotes.

Out of his peripheral vision Munoz said he first spotted the coyotes about to begin mating, but were too soon interrupted by a fluffy black-and-white dog not much smaller than the coyotes.

The dog wore a purple harness, but wasn't leashed.

"That's when I ... started taking pictures because I thought there was going to be an interaction," Munoz said. "I wanted to see what was going to happen because I'm thinking one of those coyotes is going to make a move."

The coyotes appeared to show their teeth to the dog, whose owner was far away with a smaller, leashed dog, Munoz said.

When the woman spotted the coyotes near her dog, she began running toward the group, he said.

The coyotes began to run away, but the woman's dog chased after them.

Soon, they were out of Munoz's sight, he said.

Coyotes themselves aren't uncommon in Chicago, though they are typically more active at night under the veil of darkness.

However, they have become more "bold" in recent years, animal experts have said.

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