This Northern Shoveler was easily spooked by anyone getting out of a car. We waited patiently and slowly and quietly setup a tripod just off the road on the bank of the refuge lake and let him come to us. Pretty quickly he exploded out of the water. This image was captured on January 30, 2018. I was using a Nikon D5 with a 600mm f/4 lens at f/4.5, 1/2500 sec and ISO 1000. RRS tripod with gimbal head.