Hi Stuart,
My son loved this one! He as so fast in go back to the cards he knew to get a match he sometimes wasn't even paying attention to the animals themselves. I had to stop him and ask "what animal that was" before he moved on. But surely the combination of the sounds and visuals made it interesting. I even turned it around and got him to guess the animals from listening to the sounds. the was a bit challenging.
Nice activity Stuart!
Cheers, Ben