Figure 2
From: Single mitochondrial gene barcodes reliably identify sister-species in diverse clades of birds
Assignment of unknowns. Neighbor-joining tree constructed with K2P genetic distances. Fixed substitutions are represented by coloured boxes, with corresponding character positions relative to the beginning of COI. Query specimens used in the test of assignment are indicated in red, with additional information in Table 2. a) Okarito Brown Kiwi (Apteryx rowi); b) Ruby-throated Hummingbird (Archilochus colubris); c) Sandwich Tern (Thalasseus sandvicensis).