Thesis Work at Austin Peay
I am currently working on measuring color and UV reflectance in the winter plumage of White-throated Sparrows.
I am using a Flame Spectrometer to take measurements of the sparrows throat, lore, supercillum, and median crown stripe.
Banding
Birds are captured in mist nets and brought back to station for processing. The birds are given leg bands and measured. We age and sex each bird as well. White-throated Sparrows are also bled for a blood sample. All birds are released safely.
Measurements
White-throated Sparrows are measured with a Flame Spectrometer for spectral data. The throat, lore, supercillum, and median crown stripe are measured three times per bird. Spectral data is saved as a text file and is processed in R using the pavo 2 package.
Data
Spectral data analyses is performed in R. Blood samples from the sparrows are used to extract DNA. Extracted DNA is used in PCR to identify the sex and morph of each sparrow. Sex and morph are only reliably identified by PCR when the sparrows are in winter plumage.