LOL, that's hilarious. OP has not relinquished their copyright, and are fully able to issue a DMCA takedown. Doesn't matter that he supplied the pics to the band, he's still in full control of the photo. Furthermore, when he supplied the pic, it was with the express condition he be cited for his work, he was not thus....he's fully within his rights as owner to pull them back.
Next.
I'd send both. Then allow them to post them IF the invoice is paid.
If it's online issue a DMCA takedown request.
https://www.copyright.gov/dmca/
You can do it yourself. For free.
Yeah... ask me how I learned? LOTS of sharp foliage and blurry birds. Lol.
Read the manual, and viola... lots of focused birds and bokkha leaves.
So now I'm passing on my hard earned knowledge. And lots of missed bird shots!
Think of a zoo where you're trying to capture the picture of an animal.
If you select "full" you'll focus on the fence between you and the animal 99% of the time. Select 12M-->infinite you'll only capture (focus) on things outside of 12m meaning the fence will be "invisible".
Similar with wildlife shots. Lots of times you'll have branches and leaves in front of you between the "shot". Select 12m-->infinite, the camera will ignore close items and allow you to focus on the bird/animal just beyond that length without issues.
It's very helpful.
Also select AF not MF. Let the camera do the work lol.
Auburn state park. $10 parking for the day of you don't have a park pass. 50 min drive. Beautiful, not much walking required. Go early before sunrise, get the golden hour when you arrive.
Been there many times for Sr pics etc. (To take them)
Daylight generally provides enough light for the job.
Additionally, depending upon the animal you're taking pictures of, shutter speed likely doesn't need to be above 1000/1500. Most animals are not moving around at full speed all the time.
For birds in flight even, I shoot around 1/1250 or so. Exceptions would be hummingbirds if I want to stop wing movement, that's at least 1/2500 or a bit higher.
And equipment can make a big difference. For serious professional shooters, they may have a fixed aperture of say f/4 or f/5.6, which is excellent. A budget lens can be several stops more which would cause challenges, particularly at dusk/daybreak.