Distance sampling to estimate densities of four native forest bird species during multi-species surveys

The suitability of line-transect-based distance sampling to robustly estimate population densities of bellbird (Anthornis melanura), kererū (Hemiphaga novaeseelandiae), North island tomtit (Petroica macrocephala toitoi) and tūī (Prosthemadera novaeseelandiae) during concurrent multi-species surveys was investigated. Densities were estimated annually from 2006 to 2009 at three sites within the Coromandel Forest Park, New Zealand.

Seed retention times in the New Zealand pigeon, Hemiphaga novaeseelandiae

We offered ripe fruits of tawa (Beilschmiedia tawa), taraire (B. tarairi), and pūriri (Vitex lucens) to captive New Zealand pigeons (Hemiphaga novaeseelandiae) and recorded seed retention times. We also recorded seed retention times while radio-tracking wild pigeons in Taranaki and Canterbury. We report wild pigeon retention times for tawa, pūriri, miro (Prumnopitys ferruginea), fivefinger (Pseudopanax arboreus), and kahikatea (Dacrycarpus dacrydioides) seeds.