Spring Grouse trials

[Kootenay Jim]

What is the reason that some of the Grouse trials are run in the early spring, like the Ontario Grouse Championship in MARIENVILLE PENNSYLVANIA. More birds this time of year, less folliage on the brush making it easier to see the birds and the dogs, the habitat that the birds are in , cooler weather conditions for dogs to run in, extending the trialing season?

[BdBHunts]

I believe there were some trials cancelled last year or the year before due to snow covered ground.