There are lots of Spanish language stations with animal names. Águila, for the eagle in the Mexican flag. Gallo, Gallito are roosters. Lobo is wolf. La Pantera is the panther. Tigre is tiger. All have been or are used for Spanish language stations.That's the second Spanish station I know that runs animal sound effects on a regular basis. KCHJ-1010 Delano CA is often heard with their El Gallito classic Regional Mexican format...and they often air rooster sounds!
However, in English my favorite was a Texas station years ago called the Armadillo. I believe it was alternative country, but I can't think of a less endearing creature short of a scorpion.