Water drops coat the back of a sooty grouse on a rainy afternoon, but it has shaken most of the water from its head. I wish Canon would build teleconverters into all of its telephoto lenses like they did with their 200-400mm lens, as it would be very helpful on days like this. I was photographing multiple grouse who were moving all around me as I sat on the trail, sometimes walking right up to me as they fed, but I was also keeping my eye on a marmot that was feeding nearby. I would have preferred to switch my teleconverter in and out as my subjects moved about, but given the heavy rain I was hesitant to take the lens off the camera.