Espen Bergersen / Long-finned pilot whale (Globicephala melas). Kvaloya, Norway.

Espen Bergersen / Aerial view of Fin whale (Balaenoptera physalus). Kvanangen, Troms, Norway. November

Espen Bergersen / Humpback whales (Megaptera novaeangliae). Kvanangen, Troms, Norway. November

Espen Bergersen / Killer whales / orcas (Orcinus orca). Spyhopping. Kvaloya, Troms, Norway November

Espen Bergersen / Gulls and Killer whales / orcas (Orcinus orca) feeding on herring. Kvaloya, Troms, Norway October

Espen Bergersen / Killer whale / orca (Orcinus orca) male. Kvaloya, Troms, Norway October

Espen Bergersen / Killer whale / Orca (Orcinus orca) male surfacing at sunset, Kvaloya, Troms, Norway October

Wild Wonders of Europe / Widstrand / Dorsal fin of Orca / Killer whale (Orcinus orca) surfacing, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of spawning Herring fis...

Espen Bergersen / Aerial view of Fin whale (Balaenoptera physalus) Troms, Norway. November

Espen Bergersen / Fin whale (Balaenoptera physalus). In background is the small town Skjervoy, Troms, Northern Norway.

Espen Bergersen / Killer whale (Orcinus orca), two with dorsal fins above water. Troms, Norway. October.

Espen Bergersen / Killer whale (Orcinus orca) dorsal fin, people on boat in background. Troms, Norway. October.

Espen Bergersen / Killer whales / orcas (Orcinus orca) at surface, Troms, Norway. November.

Espen Bergersen / Killer whales / orcas (Orcinus orca) flipper above surface,, Troms, Norway. November.

Espen Bergersen / Killer whales / orcas (Orcinus orca) fin, Troms, Norway. November.

Espen Bergersen / Herring gull and Killer whales / orcas (Orcinus orca) feeding on herring Troms, Norway. November.

Espen Bergersen / Killer whales / orcas (Orcinus orca) dorsal fin, Troms, Norway. November.

Espen Bergersen / Aerial side view of Fin whale (Balaenoptera physalus) blowing. Kvanangen, Troms, Norway. November

Espen Bergersen / Fin whale (Balaenoptera physalus). In background is the small town Skjervay, Troms, Northern Norway. November

Espen Bergersen / Humpback whales (Megaptera novaeangliae) showing the humpback when they dive. Kvanangen, Troms, Norway. December

Espen Bergersen / Aerial shot of Humpback whales (Megaptera novaeangliae) socialising, splashing with pectoral fins, Troms, Norway, January.

Espen Bergersen / Aerial shot of a Fin whale (Balaenoptera physalus) swimming at surface, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of a Fin whale (Balaenoptera physalus) surfacing, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of a group of Fin whales (Balaenoptera physalus) surfacing, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of a Fin whale (Balaenoptera physalus) surfacing, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of a Fin whale (Balaenoptera physalus) surfacing, Skjervoy, Troms, Norway, November.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) and Killer whales (Orcinus orca) most likely feeding on herring, off coast of Kvaloya, Troms, Norway, December

Espen Bergersen / Killer whale (Orcinus orca) male feeding in a school of Atlantic herring (Clupea harengus) with Herring gulls (Larus argentatus) also joining in, Kvaloya, Troms, Norway, November

Espen Bergersen / Kayakers getting close contact with a Humpback whale (Megaptera novaeangliae), Kvaloya, Troms, Norway, November

Espen Bergersen / Killer whale (Orcinus orca) surfacing under pink sky near coast, Kvaloya, Troms, Norway, November

Espen Bergersen / Killer whale (Orcinus orca) male surfacing with Herring gulls (Larus argentatus) with fishing boat in background. Kvaloya, Troms, Norway, November

Espen Bergersen / Fisherman watching Killer whale (Orcinus orca) male surfacing with Herring gulls (Larus argentatus) Kvaloya, Troms, Norway, November

Espen Bergersen / Kayakers getting too close to Humpback whale (Megaptera novaeangliae) Kvaloya, Troms, Norway November

Espen Bergersen / Humpback whale (Megaptera novaeangliae) lobtailing / tail slapping on surface, Killer whale (Orcinus orca) in foreground, Kvaloya, Troms, Norway, October

Espen Bergersen / Killer whales (Orcinus orca) surfacing and blowing, spray backlit by evening autumn light, Kvaloya, Troms, Norway, October

Espen Bergersen / Killer whale / Orca (Orcinus orca) male surfacing at sunset, Kvaloya, Troms, Norway October

Espen Bergersen / Humpback whales (Megaptera novaeangliae) lunge feeding on herring (Clupea harengus) being watched by tourists in Zodiac boat very close, Kvaloya, Troms, Norway, November

Espen Bergersen / Fin whale (Balaenoptera physalus) surfacing, Kvaloya, Troms, Norway November

Espen Bergersen / Kayakers approaching Humpback whale (Megaptera novaeangliae) Kvaloya, Troms, Norway November

Espen Bergersen / Humpback whale (Megaptera novaeangliae) and Killer whale / Orca (Orcinus orca) surfacing, Kvaloya, Troms, Norway November

Espen Bergersen / Killer whale / Orca (Orcinus orca) male surfacing, Kvaloya, Troms, Norway November

Espen Bergersen / Killer whale / Orca (Orcinus orca) male surfacing, Kvaloya, Troms, Norway November

Espen Bergersen / Killer whale / Orca (Orcinus orca) male surfacing at sunset, Kvaloya, Troms, Norway November

Espen Bergersen / Killer whales / Orca (Orcinus orca) pod surfacing in calm water at dusk, boats in background. Kvaloya, Troms, Norway, November

Espen Bergersen / Humpback whale (Megaptera novaeangliae) photograped from above, showing pectoral fin length, Kvaloya, Troms, Norway January

Espen Bergersen / Humpback whales (Megaptera novaeangliae) photograped from a bridge, showing pectoral fin length, Kvaloya, Troms, Norway January

Wild Wonders of Europe / Widstrand / Orca / Killer whale (Orcinus orca) dorsal fin above surface, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of spawning Herring fi...

Wild Wonders of Europe / Widstrand / Humpback whale (Megaptera novaeangliae) surfacing with fishing rope tangled around tail fluke causing wound, surfacing Orca (Orcinus orca) behind, Senja, Troms County, Norway, Scandinavia, January. Ce...

Wild Wonders of Europe / Widstrand / Orca / Killer whale (Orcinus orca) surfacing in coastal waters, Senja, Troms county, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of spawning Herring...

Wild Wonders of Europe / Widstrand / Orca / Killer whale (Orcinus orca) surfacing, showing dorsal fin from the front, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of...

Wild Wonders of Europe / Widstrand / Orca / Killer whale (Orcinus orca) surfacing, showing dorsal fin from the front, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of...

Wild Wonders of Europe / Widstrand / Humpback whale (Megaptera novaeangliae) surfacing, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of spawning Herring fish

Wild Wonders of Europe / Widstrand / Humpback whale (Megaptera novaeangliae) surfacing, Senja, Troms County, Norway, Scandinavia, January. Cetaceans are attracted to this area to feed on the large numbers of spawning Herring fish

Espen Bergersen / Humpback whale (Megaptera novaeangliae) and whale safari tourists in a big RIB. Kvaloya, Troms, Northern Norway. November 2013.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) at surface with pectoral fin raised and whale safari tourists on boat in background, at sunset. Andfjorden close to Senja, Troms, Northern Norway. January.

Espen Bergersen / Humpback whales (Megaptera novaeangliae) surfacing during polar night time. Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) surfacing during polar night time. Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) surfacing during polar night, with full moon low in horizon. Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Three diving Humpback whales (Megaptera novaeangliae) during polar night, Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Humpback whales (Megaptera novaeangliae) three in a row diving, Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) at surface raising pectoral fin. Kvaloya, Troms, Northern Norway. November.

Espen Bergersen / Killer whale / orca (Orcinus orca) male surfacing with a humpback whale (Megaptera novaeangliae). The two species were feeding on the same school of herring. Andfjorden, close to Senja, Troms, Norther...

Espen Bergersen / Killer whales / orcas (Orcinus orca), Andfjorden, close to Senja, Troms, Northern Norway, January (polar night period).

Espen Bergersen / Killer whale / orca (Orcinus orca) pod searching for herring in Andfjorden, close to Senja, Troms, Northern Norway, January (polar night period).

Espen Bergersen / Killer whale / orca (Orcinus orca), large male surfacing, Senja island visible in background. Andfjorden, close to Senja, Troms, Northern Norway, January (polar night period).

Espen Bergersen / Aerial view of Killer whales (Orcinus orca) trying to bite fluke of Humpback whale (Megaptera novaeangliae) before leaving frame, Skjervoy, Troms, Norway, Norwegian Sea, November.

Espen Bergersen / Aerial view of Humpback whale (Megaptera novaeangliae) turning onto back and splashing just below water's surface before submerging, Skjervoy, Troms, Norway, Norwegian Sea, November.

Espen Bergersen / Aerial view of Killer whales (Orcinus orca) swimming through frame whilst trying to bite fluke of Humpback whale (Megaptera novaeangliae), Skjervoy. Troms, Norway, Norwegian Sea, November.

Espen Bergersen / Aerial view of Fin whale (Balaenoptera physalus) expelling breath from blowhole, Skjervoy, Troms, Norway, Norwegian Sea, November.

Espen Bergersen / Aerial view of Fin whales (Balaenoptera physalus) surfacing, with one expelling breath from blowhole, Skjervoy, Troms, Norway, Norwegian Sea, November.

Espen Bergersen / Two Orcas (Orcinus Orca) swimming at sea surface with mountains in background, Skjervoy, Troms, Norway, Norwegian Sea. October.

Espen Bergersen / Orca (Orcinus orca) with dorsal fin above sea surface close to a fishing vessel surrounded by huge flock of gulls, Kvaenangen, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Orca (Orcinus orca) male, swimming at sea surface, with sunlight reflecting on dorsal fin, Troms, Norway. November.

Espen Bergersen / Orca (Orcinus orca) swimming at water surface with huge flock of gulls overhead, silhouetted at sunrise, Kvaeangen, Troms, Norway. November.

Espen Bergersen / Orca (Orcinus orca) male, swimming at sea surface, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Orca (Orcinus orca) male, swimming at sea surface with sunlight reflecting on dorsal fin, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Orca (Orcinus orca) swimming at sea surface with sunlight reflection on dorsal fin, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Two Orcas (Orcinus orca) swimming at sea surface with sunlight reflection on dorsal fins, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Two Orcas (Orcinus orca) swimming at sea surface with sunlight reflection on dorsal fins, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Orca (Orcinus orca) male, surfacing, Troms, Norway, Norwegian Sea. November.

Espen Bergersen / Orca (Orcinus orca) feeding at the surface on bait ball of Herring, surrounded by ice fog and backlit by low-lying sun, Kvaenangen, Troms, Norway. January.

Espen Bergersen / Pod of Orcas (Orcinus orca) feeding at the surface on bait ball of Herring, surrounded by ice fog in extremely cold conditions, Kvaenangen, Troms, Norway. January.

Espen Bergersen / Pod of Orcas (Orcinus orca) feeding at the surface on bait ball of Herring, surrounded by ice fog and backlit by low-lying sun, Kvaenangen, Troms, Norway. January.

Espen Bergersen / Pod of Orcas (Orcinus orca) feeding at surface on bait ball of Herring surrounded by ice fog, with flock of gulls circling above, Kvaenangen, Troms, Norway. January.

Espen Bergersen / Killer whale (Orcinus orca) swimming at surface, on its side, slapping pectoral fins. Troms, Norway. June.

Espen Bergersen / Killer whales (Orcinus orca) swimming at surface, on its side, slapping pectoral fins. Troms, Norway. June.

Espen Bergersen / Killer whale (Orcinus orca) breaching. Troms, Norway. June.

Espen Bergersen / Killer whales (Orcinus orca) at sea surface, with pronounced blow, in late evening sun. Troms, Norway. June.

Espen Bergersen / Killer whale (Orcinus orca) at sea surface, with pronounced blow. Troms, Norway. June.

Espen Bergersen / Wide angle of Killer whale (Orcinus orca) at sea surface. Troms, Norway. June.

Espen Bergersen / Killer whale (Orcinus orca) at sea surface. Troms, Norway. June.

Espen Bergersen / Killer whales (Orcinus orca) at sea surface, with pronounced blow, in late evening sun. Troms, Norway. June.

Espen Bergersen / Killer whales (Orcinus orca) at sea surface, dorsal fin close up. Troms, Norway. June.

Espen Bergersen / Killer whales (Orcinus orca) swimming at surface, on their side, slapping pectoral fins. Troms, Norway. June.

Espen Bergersen / Killer whale (Orcinus orca) swimming at surface, on its side, slapping pectoral fins. Troms, Norway. June.

Espen Bergersen / Killer whale (Orcinus orca) breaching. Troms, Norway. June.