Also more human than avian, also unrecognisable to me, also coming from treetop height.

BBC: England��s ghostly South Downs Way

Head to South Africa's Tsala Treetop Lodge, in Plettenberg Bay, and you'll find infinity pools and fireplaces.

CNN: 7 deluxe tree-house hotels

Fundraising will now begin for the next phase of development - a treetop walkway and tree management centre.

BBC: Westonbirt Arboretum: Development work starts

Each city block belongs to a different crew Tortilla Flats, Treetop Piru, Nutty Block, the Palmer Bloc Crips...

NPR: Terror, Hope on the Streets of Compton, Part 2

Each block belongs to a different crew, Tortilla Flats, Treetop Piru(ph), Nutty Block.

NPR: Terror, Hope on the Streets of Compton, Part 1

But when poachers carrying rifles or machetes traipse by a detector, it will send a radio signal to a treetop antenna.

ECONOMIST: Monitor

No, impossible, for the sound was coming from treetop height.

BBC: England��s ghostly South Downs Way

Many of the dead trees are still standing, and can serve as ladder fuels that transform relatively cool surface fires into hot, fast-moving crown fires that leap from treetop to treetop.

FORBES: Forests and Climate Change: a Combustible Combination