Parent Category Figures
1 Hydrobatidae Oceanodroma 1174
2 Hydrobatidae Oceanites 783
3 Hydrobatidae Pelagodroma 105
4 Hydrobatidae Hydrobates 84
5 Hydrobatidae Fregetta 50
6 Hydrobatidae Garrodia 16
7 Hydrobatidae Nesofregetta 9