Answer: In reality blue sapphire gemstones come in many shades of blue from light to dark. Today the color sapphire generally refers to a medium cornflower blue shade of blue up to darker, deeper, but still bright hues.
Some of the most common seeds found in these mixes include safflower, sunflower, millet, canary seed, hemp, thistle seed, green split peas, yellow split peas, whole peas, corn, wheat and milo.
Some seeds have only one wing (e.g. Lime or Ash). This type of attachment is quite heavy, and this system only works well in a good wind, and from a tall tree. Sometimes seeds have thin wings as an extension of the seed that enable them to glide in the wind.