Parent Category Figures
1 Hydrobatidae Oceanodroma 1174
2 Hydrobatidae Oceanites 776
3 Hydrobatidae Pelagodroma 104
4 Hydrobatidae Hydrobates 75
5 Hydrobatidae Fregetta 49
6 Hydrobatidae Garrodia 16
7 Hydrobatidae Nesofregetta 9