140927 2731 Quail babies

Anyone know what these are? They are 1 month old. VERY calm and mellow. If one flies away you simply go pick it up. Not afraid at all and make no attempt to escape. They are going to live with the Doves in the indoor aviary. They Can fly quite well but stay on the ground mostly. They will not get too much bigger. They make a sweet chirping sound, almost like a sound from someones cell phone.