Great series Jonathan, thanks for sharing!
I went to a nearby park/reserve which is more for beginners and the focal length limited, Here is a Snowy Egret with a 70-300 and I had to zoom out. Clearly not as challenging to shoot as Jonathan's owls :-)

101 _MG_9323 by ahab1372, on Flickr

Ready for take-off

101 _MG_9305 by ahab1372, on Flickr


tried a different style for a change, the image invited itself for a desaturated look:

101 _MG_9171 by ahab1372, on Flickr


and after all these white birds, a crow to balance it out:

101 _MG_9251 by ahab1372, on Flickr

Thanks for viewing