Bird watchers in Edgewater, N.J., market T-shirts, calendars and other parakeet merchandise, and a New York man leads tours of their Brooklyn nesting grounds.

• 新泽西州艾奇沃特的鸟类观察人员销售条纹长尾小鹦鹉、日历长尾小鹦鹉和其他长尾小鹦鹉，另一个纽约州人绕着布鲁克林区的鸟巢旅游。