I have been looking and looking for information on bird bands. Closed versus open bands. Some open bands are wild caught bands but they are not always wild caught bands some are sexing bands and breeder also put open bands on if a baby is banded late or for adult birds for breeder records. Here are a couple of links I found if anyone is intereted in reading on them. You will have to copy and paste the links.



http://birdmart.com/chatboards/softbills/topic935/6.09.04.10.33.44.html

http://www.birdsnways.com/wisdom/ww5eiii.htm