Show Molting and Production The length of time a bird is out of production can be estimated by bythe bythe bythe the molting of the primary or large wing feathers according to a writer In the Indiana Farmers Farmer's Guide It requires about six weeks to com com- completely completely renew the primary feather next to the axial small feather In InI I center of wing between primaries and feather The re- re remaining remaining re remaining primaries are dropped In order about two weeks apart and grow crow in at the same rate Occasion Occasion- Occasionally Occasionally ally a bird sheds several primaries of at one time which in estimating r length of time out of production should be treated as a single primary I |