This package consists of 4 diaphragm calls. Eastern - 3-1/2 reed - replicates the cutting and yelping of the eastern and midwest hens.Osceola - 2-1/2 reed - replicates the Osceola hen on a lighter side. Rio Grande - 2-1/2 reed - creates the light pitched vocals of the Rio Grande hens.Merriam - 2-1/2 reed - inverted “V†creates the high-pitched rasp of the Merriam hen.