Presentation Title

Examination and Comparison of the Colouration of Mountain Blue Bird Feathers

Format of Presentation

Poster to be presented the Friday of the conference

Presenter Information

Micheal RouaultFollow

Abstract

The Mountain Blue Bird (Sialia currucoides) is a medium sized bird that is found in western North America, including the British Columbia Central interior and therefore Kamloops. The breeding range of the Mountain Blue Bird extends up through northern Canada and Alaska while its wintering range reaches southern Mexico. Male Mountain Blue Birds are sky blue, with darker wing and tail regions above and lighter blue below. Females are mostly grey-brown with slight pale blue in the wings and tail. They have black beaks and occasionally show a suffusion of orange brown on their chest. This study will be conducted on the TRU campus and will involve the analysis of the colour of previously collected Mountain Blue Bird feathers using reflectance spectrometry in lab. The computer software Environment R and PAVO program within will then be used to quantify the colour of the Mountain Blue Birds and then answer various questions about the birds.

Research Objectives: Use reflectance spectrometry to examine variation in colouration of mountain bluebird feathers. Use the R program PAVO to examine tetrahedral colourspace models and other models for quantifying avian colour. Compare those models to traditional metrics of hue, chroma, and brightness. Using the metrics developed by PAVO, determine whether those metrics better explain differences among age classes, sexes, and other important characteristics of mountain bluebirds.

Department

Biological Sciences

Faculty Advisor

Matt Reudink

This document is currently not available here.

Share

COinS
 

Examination and Comparison of the Colouration of Mountain Blue Bird Feathers

The Mountain Blue Bird (Sialia currucoides) is a medium sized bird that is found in western North America, including the British Columbia Central interior and therefore Kamloops. The breeding range of the Mountain Blue Bird extends up through northern Canada and Alaska while its wintering range reaches southern Mexico. Male Mountain Blue Birds are sky blue, with darker wing and tail regions above and lighter blue below. Females are mostly grey-brown with slight pale blue in the wings and tail. They have black beaks and occasionally show a suffusion of orange brown on their chest. This study will be conducted on the TRU campus and will involve the analysis of the colour of previously collected Mountain Blue Bird feathers using reflectance spectrometry in lab. The computer software Environment R and PAVO program within will then be used to quantify the colour of the Mountain Blue Birds and then answer various questions about the birds.

Research Objectives: Use reflectance spectrometry to examine variation in colouration of mountain bluebird feathers. Use the R program PAVO to examine tetrahedral colourspace models and other models for quantifying avian colour. Compare those models to traditional metrics of hue, chroma, and brightness. Using the metrics developed by PAVO, determine whether those metrics better explain differences among age classes, sexes, and other important characteristics of mountain bluebirds.