Doves or Pigeons 
Since doves and pigeons are closely related these figures can be used for either depending on the setting. Most typically they are considered doves.
There are three versions of the white and blue doves, with a smaller solid base and with a larger base with a hole in it. More recent examples have a rectangular rather than a round hole in the base. It's believed the earlier part number for each refers to the solid base. The solid base version is in both hard or soft plastic, with the hard plastic probably the earlier of the two. There isn't a known part number difference between the hard and soft plastic.
