Cosgrove Creek on the Catlins coast is managed as part of the of the Yellow-eyed Penguin Trust Long Point / irahuka Reserve network. Owned by the Trust, it is designated as a Scientific Reserve and is a little over 10ha in size. The Long Point / Irahuka reserve network is focused in the short to medium term on restoring the habitat for yellow-eyed penguins and other seabird species. The longer term goal is to restore the coastal shrublands and forest and associated fauna. Key project partners in the reserve conservation work are the Dunedin & South Otago branches of Forest & Bird. They have an active role in both the trapping and also specific sea bird conservation initiatives as part of their wider Otago coastal project "Bring back the Seabirds".