Bus from Blizzard Beach to Animal Kingdom (mid-day)

[gtpooh]

We are planning a day for our late August trip where we take the kids to Blizzard Beach in the morning, and in the early afternoon (between 12-1) we go to the Animal Kingdom. I know in the morning, the buses from our hotel (Bay Lake Tower) first stop at Blizzard Beach on the way to the Animal Kingdom. Does anyone know how long this continues for? I was told by someone that the buses may switch the order later in the day (first stop at AK and then at BB). Is this what happens? If so, when? We just want to make sure there is a direct bus from BB to AK in the early afternoon. TIA!