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4.18. Micro-aging fields

The next fields describe “micro-aging” by means of molt limits and other criteria. The practice has changed over the years:

Values allowed in these fields since 2004 are:

AAlternate
BBasic
FFormative
JJuvenal
LJuvenal and formative
MMixed basic
NNon-juvenal
RJuvenal and basic
UUnknown

Any micro-aging field can also be blank.

This table shows the micro-aging fields. The first column is the label on the actual banding sheet. The second column is the name of the field in the dBASE V layout; see Section 5, “The current MAPS/MAWS output format” for field descriptions. The third column is “all” if taken in all years, “old” if taken before 2004, and “new” if taken from 2004 on.

LabelFieldYearsDescription
Pri. Covs.PPCallPrimary coverts.
Sec. Covs.SSCallSecondary coverts.
PrimariesPPFallPrimaries.
SecondsSSFallSecondaries.
TertialsTTallTertials.
RectricesRRallRectrices.
HeadHDoldHead.
UpperptsUPPoldUpperparts.
UnderptsUNPoldUnderparts.
Body plum.BPLnewBody plumage.
Non-feath.NFallNon-feather criteria.