Jeff Foott / Mountain pine beetle (Dendroctonus ponderosae) pupa in Lodgepole Pine, Teton National Park, Wyoming, USA, August. The current outbreak of mountain pine beetles has been particularly aggressive. This is due to climate change, monoculture planting of trees and fire suppression.

Andy Trowbridge / Variable oystercatcher (Haematopus unicolor) adult pied morph in flight about to land. Ashley river, Christchurch, New Zealand. August.

Ernie Janes / Variable oystercatcher (Haematopus unicolor) on beach Abel Tasman, New Zealand, February.

Brent Stephenson / Adult Pied morph variable oystercatcher (Haematopus unicolor) with a chick on a shelly shore. Waipu Estuary, Northland, New Zealand, February.

Brent Stephenson / Juvenile Variable oystercatcher (Haematopus unicolor) on a rocky shoreline. Kaikoura, Canterbury, New Zealand,Kaikoura, Canterbury, New Zealand, January.

Grant Maslowski / Variable oystercatchers (Haematopus unicolor) pair, foraging on beach, Tomahawk Beach, Dunedin, South Island, New Zealand.

Grant Maslowski / Variable oystercatchers (Haematopus unicolor) foraging on beach with one taking flight in foreground, Tomahawk Beach, Dunedin, South Island, New Zealand.

Doug Gimesy / Variable oystercatcher (Haematopus unicolor) standing on seaweed covered rocks in rain, Doubtful Sound, Fiordland, New Zealand, January.

Doug Gimesy / Variable oystercatcher (Haematopus unicolor) flying in the rain whilst calling, Doubtful Sound, Fiordland, New Zealand, January.