Jackie,
Those sure look like Wine Caps to me! So you started in April and already have mushrooms? Great Job!!!
If you don’t mind, would you please comment on your
experience on my long-running Wine Cap
thread HERE:
https://permies.com/t/82798/composting/composting-wood-chips-chicken-litter
I keep this updated so new mushroom growers can have a base of experience and your bed looks like it is doing great. If you really want to see if it is a Wine Cap, let it grow and see if it gets to dinner plate size. They won’t taste well at that point but it’s gargantuan size is about a perfect indicator that it is a Wine Cap.
Again, great job!
Eric