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1 https://en.wikipedia.org/wiki/Nesotrochis
2 https://en.wikipedia.org/wiki/Adzebill
3 https://en.wikipedia.org/wiki/Hesperornis
4 https://en.wikipedia.org/wiki/Iberomesornis
5 https://en.wikipedia.org/wiki/Ichthyornis
6 https://en.wikipedia.org/wiki/Liaoningornis
7 https://en.wikipedia.org/wiki/Longipteryx
8 https://en.wikipedia.org/wiki/Longirostravis
9 https://en.wikipedia.org/wiki/Moa-nalo
10 https://en.wikipedia.org/wiki/Shanweiniao
11 https://en.wikipedia.org/wiki/Turaco
12 https://en.wikipedia.org/wiki/Explorornis
13 https://en.wikipedia.org/wiki/Sapeornis
14 https://en.wikipedia.org/wiki/Patagopteryx
15 https://en.wikipedia.org/wiki/Hongshanornis
16 https://en.wikipedia.org/wiki/Apartornis
17 https://en.wikipedia.org/wiki/Hoatzin
18 https://en.wikipedia.org/wiki/Little_bustard
19 https://en.wikipedia.org/wiki/Sylviornis
20 https://en.wikipedia.org/wiki/Stout-legged_wren
21 https://en.wikipedia.org/wiki/Long-billed_wren_(New_Zealand)
22 https://en.wikipedia.org/wiki/Highland_finch
23 https://en.wikipedia.org/wiki/Xestospiza_fastigialis
24 https://en.wikipedia.org/wiki/Hawaiian_honeycreeper
25 https://en.wikipedia.org/wiki/Finch
26 https://en.wikipedia.org/wiki/Mauritius_starling
27 https://en.wikipedia.org/wiki/List_of_Late_Quaternary_prehistoric_bird_species
28 https://en.wikipedia.org/wiki/Meadow_bunting
29 https://en.wikipedia.org/wiki/Dasornis
30 http://digitallibrary.amnh.org/handle/2246/6096
31 https://en.wikipedia.org/wiki/Osteodontornis
32 https://accpaleo.wordpress.com/2010/09/29/central-coast-critters-osteodontornis/