Roof Kitty

This morning, Elliott spotted another kitty taking a bath on our living room skylight. She howled at the ceiling for a couple of minutes before Roof Kitty took off, then she howled for another 10 minutes, perhaps hoping that Roof Kitty would come back. Elliott kept running up and down the stairs to try to get closer to Roof Kitty, and then when that didn't work, she tried to climb the side of the fireplace.

Do your pets freak out when they see other animals?