Project Orejiamarillo: a conservation initiative

  • Published source details Salaman P., Quevedo A. & Verhelst J.C. (2006) Proyecto Orejiamarillo: una iniciativa de conservación. Conservación Colombiana, 2, 7-11.


This study is summarised as evidence for the following.

Action Category

Provide artificial nesting sites for parrots

Action Link
Bird Conservation
  1. Provide artificial nesting sites for parrots

    A replicated study in 2006-7 at five montane sites in Colombia (Salaman et al. 2006) found that yellow-eared parrots Ognorhynchus icterotis rarely used artificial nest boxes provided, with one box occupied in 2006 and one in 2007, raising two fledglings each. A total of 42 nest boxes were built and hung 10-20 m above ground on Quindío wax palms Ceroxylum quindiuense lacking suitable nest cavities. Boxes were wooden and hexagonal, with 140 x 20 cm sites and a 10 cm entrance hole, with grooves inside to allow parrots to climb out.


Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust