A few species, for example the Mediterranean parrotfish (S. cretense), are secondary gonochorist, meaning some females do not change sex, and the ones that do, change from female to male while still immature (i.e., reproductively functioning females do not change to males).
R. B. Winter State Park. R. B. Winter State Park (also known as Raymond B. Winter State Park) is a Pennsylvania state park on 695 acres (281 ha) in Hartley Township, Union County, Pennsylvania in the United States. It is in the ridge and valley region of Pennsylvania and is surrounded by Bald Eagle State Forest.
Winter solstice is 21st/22nd December when the sun is at it's weakest. However, due to seasonal lag this is still in the first third of winter generally (look at seasonal lag on wikipedia) and is not the middle of winter at all for that reason. Calendar winter also begins on the solstice. However, overall it starts to feel like winter in late November.