Читать книгу Birds of New Zealand, Hawaii, Central and West Pacific - Ber Perlo van - Страница 18
Оглавление10 Petrels
| 10.1 CHATHAM PETREL Pterodroma axillaris [Pétrel des Chatham] W 67cm. Diagnostic underwing pattern, in which carpal joint is connected by bar to rear edge where touching body. Offshore and open ocean. Breeds in burrows in soft clay under vegetation clumps and tussocks. Very high, rapid, staccato tseetseetsee in flight. Breeds NZ 4. R | |
| 10.2 MOTTLED PETREL Pterodroma inexpectata [Pétrel maculé] W 85cm. Underparts with diagnostic broad bar across underwings and brownish belly. Nests in burrows in rocky ground and tussock grassland. High, thin shrieks in short, slightly lowered series. Breeds NZ 3,5. R | |
| 10.3 PHOENIX PETREL Pterodroma alba [Pétrel à poitrine blanche] W 83cm. Very similar to 9.1, 9.9 and 11.3, but underwings solid brown except narrow white line along leading edge. Offshore and open ocean. Breeds not in burrows, but on the ground at sheltered sites under trees or bushes. High, sharp bickering, down-slurred at the end. Breeds Ki, FrPo 3, Pi. R | |
| 10.4 KERMADEC PETREL Pterodroma neglecta [Pétrel des Kermadec] W 92cm. Polymorph, dark (a) morph and pale (b) morphs shown; most common is intermediate morph (not shown). All morphs generally difficult to separate from similar petrels (e.g. 9.5, 11.2 and 11.3) but white primary shafts on upperwings (hard to see) diagnostic. Nests on cliffs or slopes with little vegetation. Long, drawn-out, mourning shrieks and bleating, changing in pitch. Breeds NZ 10. R | |
| 10.5 JUAN FERNANDEZ PETREL Pterodroma externa [Pétrel de Juan Fernandez] W 97cm. Note large size and narrow black bar to underwings. Often shows horseshoe-like white base to upper tail. Breeds outside the area. Short series of mewing and trumpet-like notes. Also drawn-out hooting. Breeds Juan Fernandez Is, Chile, from where disperses north. R | |
| 10.6 WHITE-NECKED (or NZWhite-naped) PETREL Pterodroma cervicalis [Pétrel à col blanc] W 100cm. White neck diagnostic but beware of individuals of 10.5 with pale grey neck. Offshore and open seas. May nest in burrows (Kermadecs). Breeds NZ 10. R | |
| 10.7 STEJNEGER’S PETREL Pterodroma longirostris [Pétrel de Stejneger] W 60cm. Note narrow black bar to underwings, similar to 10.8, but shows darker upperparts. Offshore and open sea. Nests in burrows under ferns. Breeds Juan Fernandez Is, Chile, from where disperses north. R | |
| 10.8 COOK’S PETREL Pterodroma cookii [Pétrel de Cook] W 65cm. Cf. 10.7. Upper parts paler grey than other small petrels. Breeds in burrows near ridges or steep slopes in thick forest. Mid-high, nasal chatters. Breeds NZ 12 and other small islands off NZ. R |
