Noah's Ark Possibility Project (NAPP)
1. The list of recently extinct birds is from .
2. When the Adult Ave. Wt. Used is the result of comparison with other animals of the same order, it is indicated by "e".
3. Except for two orders, the Ave. of Ave. Adult Wt. Used/or Weighted Ave. of Ave. Adult Wt. calculated in or from Table 3 for the extant order was considered close enough for these calculations.
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1 this website, NAPP, Table 3, Ave. of Ave. Adult Wt. Used, Passeriformes