White-tailed Shrike-Tyrant, Chiguata

I have only seen White-tailed Shrike-Tyrant a couple of times, and never photographed the species earlier. At about 3500 meters, Mauricio spotted one, but after a couple of minutes, it disappeared. I started to run after the bird without thinking about the altitude, and I found it after a ten minutes hike up the hillside. I felt shaky and could hardly held the camera, but I was able to take some pictures of the bird.

White-tailed Shrike-Tyrant (above and below)

 Black-billed Shrike-Tyrant, photograpet at 3000 meters in Chiguata the same day.