Which is the best park to see a Grey Warbler?
Arthur's Pass National Park
In Arthur's Pass National Park, New Zealand, about 90% of wildlife watchers report a Grey Warbler sighting on a given day, the highest of the 6 parks where we can rate it, from GBIF citizen-science data.
Where else can you see a Grey Warbler?
Aoraki Mount Cook National Park and more
After Arthur's Pass National Park, the next-best odds of seeing a Grey Warbler are in Aoraki Mount Cook National Park (New Zealand, about 80%), Egmont National Park (New Zealand, about 70%) and Rakiura National Park (New Zealand, about 60%).
When is the best time to see a Grey Warbler?
It depends on the park
In the top parks, the best months are February, August and December in Arthur's Pass National Park (about 90%), November in Aoraki Mount Cook National Park (about 90%) and July in Egmont National Park (about 90%), as the share of wildlife watchers who report a Grey Warbler on a given day. Each park's Grey Warbler page has the full month-by-month chart.