Have heard a bit of confusing information regarding brindle coyotes. Some people seem to think that any charcoal-colored or abnormally dark coyote is 'brindle'. But an animal with true brindle coloration will have stripes and mottled patches of brown, black, tan, and gray. In a coyote, the coloration looks much like it does on a Dutch shepherd dog. Here's a pretty exceptional example of brindle markings in a canine: http://3.bp.blogspot.com/-C9kWzhlSosY/ULtd3CMo9XI/AAAAAAAAAXA/-OLVJ3_ZKiQ/s1600/DutchShepherd.jpg Since that one is a little light in color, here's a darker brindle dog, more similar to the brindle coyotes I've seen and worked with personally: http://www.younghaus.com/uploads/images/RudiePeggeA.jpg Among coyotes, it's usually easy to spot brindle markings on the belly and legs, where the length of the fur doesn't hide the variation in colors. If it's all one color, and doesn't have stripes, it's not a brindle coyote. Here's more information about brindle markings in canines: http://www.doggenetics.co.uk/brindle.html Hope this helps!