Using the Motion Controller makes it very easy to follow and get a good shot.  Was able to stay with them for almost 7 minutes before running out of battery.  

Impressive video!
Make sure they are safe!

PS, I subscribed to your channel via 2 channels .
Mine are http://www.youtube.com/c/tricksandtipsnl
http://www.youtube.com/c/PeterMontfrooij

Hello there sbarton. Good day and thank you for posting this cool video you have filmed. Just a reminder that birds are part of our environment and I'm sure they're not familiar to the drones that is why they might react aggressively when they notice it. Thank you and please fly safe always. .

Stunning.