Great images. Would have been a pity to find your camera with a a 16-35mm lens and a drained battery Did you read my mind? ... my bro-in-law has lots of fruit trees in his backyard with full of fruit in Melbourne, Australia, and lots of birds come to pick on those fruit throughout the day. Anyway, during my vacation a couple of weeks ago, I stayed at his place for a few days. One day my bro-in-law calls me to the kitchen window (facing the backyard) to show a beautiful King Parakeet perched on one of the branches, providing for a fantastic photo opportunity. So, I ran and grabbed my camera bag from the bedroom, pull out the camera to find it mounted with a 16-35mm ... so I pull out the 70-200, unmount the 16-35, mount the 70-200, change the settings point it at the bird and the battery was totally drained, so I insert a freshly charged battery and the camera says "no card" inside ... by this time, I was getting really upset with myself, so I rush back again into the bedroom to pull out the CF & SD cards in the card reader (which I had planned on using to download the images to my laptop) ... I come back again to the kitchen window, with the CF card properly inserted into the camera, raise the camera to the bird who was still posing for me ... only to find the f@%@ing CF & the SD card full ... so I go back and get another CF & SD card, point the camera towards the bird, only to find it flying away ... I was so pi$$ed off with myself that morning.
Mine is a bit shorter, but same consequence. I got a distant tail picture of a running arctic fox who had been just outside my tent, feeding on the leftovers in me storm kitchen from the night before. That was the first time I had seen one in the wild and they are veeeery rare.
1DXII, 5DIV, 5DSR, 8-15/4L, 11-24/4L, 16-35/2.8L III, 24-70/28L II, 70-200/2.8L IS II, 100-400/4.5-5.6L IS II, 200-400/4L IS 1.4x, 17/3.5L TS-E, 24/4L TS-E, 35/1.4L II, 100/2.8L IS Macro, 300/2.8L IS II, 600/4L IS II, Zeiss: 15/2.8, 35/1.4, 55/1.4 Otus, 85/1.4 Otus, Profoto B1