Recently fledged young or downy young. This includes dependent young only. Be cautious of species that range widely soon after fledging. One of the best features to look for is the length of the tail feathers. If shorter than the adults, the young probably originated locally.
Young cowbirds begging for food confirm both the cowbird and the host species.
The following are examples of situations that may be encountered during atlasing to serve as guidelines in assigning codes. If in doubt, consult with your Group Leader of Biological Inventories Coordinator. Possible, Probable, or Confirmed, depending on breeding evidence obtained. Gulls frequenting plowed fields, lawns, etc.