Tom....adding some lighting to my HB garden will enable me to keep the ISO down (I don't like going higher than 800) and the shutter speeds above 1/100th. And, hopefuly,allow me to shoot after 3pm when there is a nice mottled golden light in the garden, but not strong enough for the HBs.
My technique for capture is nearly spot on to your style.
Now that fall is approaching quickly my feeding stations, in the garden, are shaded by 1015a....yes, I could move them, but the garden is fully shaded by 1030a.
Bob....I like your background, very natural and nicelyOOF'ed, especiallyfor the 100-400. IMO, I wouldn't purchase a fake background, just pay attention to your positioning, i.e. shooting distance to subject and subject distance to background.
Here's a shot I took this morning at about 715a....there was a stream of light hitting the HB, but nowhere else.
7D, 100-400 at 400, f8, 1/400, ISO 250, tripod, cropped and enlarged to 66%.
C&C welcome
Regards
Bill