It worked for me. I got real lucky with a bunch that last couple years right at the house.
With the 1.4III ........ Now I have Indigo Buntings and their much harder to get close to right now
Beautiful! Just beautiful. But I finally do know you're cheating now. That little guy obviously wen to modeling school! 



R5 , 600mm. F4 L IS II , RF 100-500, EF 100 F2.8 L IS macro, 1.4 Tc.III . 







