Is It Time?

On a late August afternoon in Yellowstone NP, herd bulls, separated from the cows, graze in the meadows along NE Entrance Rd near Lamar Valley, anxiously awaiting the rut. The largest male in this small group appears to be exhibiting a behavior known as flehmen, testing the air for the presence of pheromones signaling estrus.

EF 200-400mm @ 392mm; f/8 @ 1/50 sec, +1 EV, ISO 100

Great environment and lovely meadows!

Thank you, Jagdeep. Great location, Great light. Lots of animals. I only needed to watch for and capture some interesting behavior.