Are those dogs or flamingo's?

This weekend, I visited Team Red K9 during their Sunday training for obedience and protection.  When I drove up, I saw a dozen large dogs, sitting in the middle of a grassy knoll between a parking lot and a road.  There were no trainers with the dogs.  The dogs sat so still,  they reminded me of a flock of plastic famingo's randomly sitting in an unsuspecting homeowner's front yard.  It was so cool!! The best long sit-stay I have ever seen.    These are not flamingos.

These are flamingos.