Where provide good sound effects?

My job needs animal sound effects to fit into the video, how do I get good animal sounds or noise and no copyright. Where provide reputable sound effects?

Try freesound.org


I gathered some to use in a project in the MagPi magazine, the sounds I used are here Mikes-Pi-Bakery/Safari/sounds at master · Grumpy-Mike/Mikes-Pi-Bakery · GitHub