The heat is starting to get to them (???)

[augustmomx2]

I have 14 Cornish Xs that will be 8wks this Wednesday, they are also being butchered this Wednesday. Today, I noticed the heat is really getting to them, its fairly sunny and 77degrees outside. Luckily they are under a shady spot, but still they are panting...a lot. Is this normal?!? Is there any thing "extra" I should be doing? Thanks in advance

 

[Dogfish]

Shade, water.

 

[jaku]

I think they should be fine. 77 degrees isn't bad.