Sightings List for April 28-May 2, 2004 Offshore Birding Trip.
| Species | Totals |
| Pacific Loon | 48 |
| Laysan Albatross | 20 |
| Black-footed Albatross | 17 |
| Northern Fulmar | 135 |
| Pink-footed Shearwater | 81 |
| Sooty Shearwater | 120 |
| Manx Shearwater | 1 |
| Black-vented Shearwater | 39 |
| Leach's Storm-petrel | 51 |
| Ashy Storm-petrel | 7 |
| Black Storm-petrel | 17 |
| Red-billed Tropicbird | 6 |
| Brown Pelican | Many |
| Brandt's Cormorant | Many |
| Double-crested Cormorant | 3 |
| Pelagic Cormorant | 21 |
| Surf Scoter | 1 |
| Whimbrel | 23 |
| Red-necked Phalarope | 125 |
| Red Phalarope | 45 |
| Pomarine Jeager | 23 |
| Bonaparte's Gull | 1 |
| Heerman's Gull | 7 |
| California Gull | 19 |
| Western Gull | Many |
| Sabine's Gull | 33 |
| Royal Tern | 35 |
| Elegant Tern | 17 |
| Common Tern | 4 |
| Arctic Tern | 2 |
| Least Tern | 9 |
| Pigeon Guillemot | 8 |
| Xantus's Murrelet | 20 |
| Cassin Auklet | 200+ |
| Mourning Dove | 1 |
| Barn Swallow | 1 |
| Yellow Warbler | 1 |
| Wilson's Warbler | 1 |
Whales, Dolphins and other Marine Mammals |
|
| Humpback Whale | 5 |
| Fin Whale | 3 |
| Long-beaked Common Dolphin | 15 |
| Short-beaked Common Dolphin | 100 |
| Cuvier's Beaked-whale | 1 |
| Pacific White-sided Dolphin | 30 |
| Risso's Dolphin | 8 |
| Orcas | 12 |
| Dall's Porpoise | 20 |
| California Seal Lion | Many |
| Elephant Seal | 2 |
| Northern Fur Seal | 2 |
Other Marine Life |
|
| Mola Mola (Ocean Sunfish) | |
| Blue Shark | |
| Mako Shark | |
| Pacific Saurie | |
| Scad mackerel | |
| Ocean Whitefish | |
| Vermillion Rockfish | |
| Flying fish | |
| Humbolt Squid | |
| By-the-wind Sailors | |