OZONE PARK, N.Y. - The plowing of snow and ice from the barn area and the fact there are still two weeks of racing remaining on Aqueduct's inner track may belie the fact that spring was to officially commence at 8:07 Tuesday night. But the expected arrival of three shippers from California for Saturday's $150,000 Distaff Breeders' Cup Handicap is indeed a sign of the change in seasons.