I agree, the 24-70, 2.8 is the first. Then I'd recommend the 70-200, 2.8 and the 14-24, 2.8 to complete the "holy trinity". A 50, 1.4 is a nice addition here too.
Excellent picture. Very beautiful. I see a lot of red bellied woodpeckers and pleated woodpeckers, but haven't seen a red headed one. Where did you take the shot?
I'm so proud of the previous comments about this image. Times are changing and I'm just happy that women are appreciated for all their collective values.
Your Greys are beautiful. You really captured their expressiveness and obvious love for the young man (& his for them). We have two right now too (the third passed away a couple springs ago). They are amazing.
IMHO the ultimate trifecta for a full frame is 14-24, 24-70, 70-200 f/2.8's. Then add the 200-500 for your wildlife photography and, boom, you have everything you need. Still hang on to the 24-120 for travel multi-purpose.