Sentence:  About the same size as the valley quail and the Gambel's quail, the scaled quail is often referred to as the "drab shirttail relative." Gray-blue in color (often known locally as "blue quail"), with a slight black tipping of the chest and breast plumage that creates scalelike markings, (hence the nickname "<WSD>scalies</WSD>"), … 
Meaning of the word marked with <WSD> tags:  A scaled quail ("Callipepla squamata").