i also found knobber but cant find it in the dictionery it does say that pricket is the name of a fallow deer in its second year. brocket just says a small deer from south america.
"This process will not start to occur until after the second year; in their first year stag calves will start to develop the pedicles (knobs of bone on the skull) that will eventually carry the antlers and these become visible during their first winter. In their second year they are known as a Knobber (or brocket) ".............................taken from countrysportsandcountrylife.com........article on Red deer
stag. 1st year calf 2nd year brocket 3rd year spayard 4th year staggard 5th year stag or hart. buck 1st year fawn 2nd year pricket 3rd year soral 4thyear sore 5th year buck. found this on google.