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Tuatara: Volume 21, Issues 1 and 2 (New Zealand Albatrosses and Petrels: an Identification Guide)
Storm Petrels
Storm Petrels
| A. Black above and below; white rump. | |
| 49. Wilson's Storm Petrel | Pl. 18 |
| B. Black above, mainly white below. | |
| • No white rump. | |
| 50. Grey-backed Storm Petrel | Pl. 18 |
| • White rump. | |
| Belly pure white. | |
| 51. White-bellied Storm Petrel | Pl. 19 |
| Belly with black central line. | |
| 52. Black-bellied Storm Petrel | Pl. 19 |
| C. Mainly brown above, and white below, with white facial markings. | |
| 53. White-faced Storm Petrel | Pl. 18 |