Date of Award


Document Type

Honors Thesis



First Advisor

Shandelle Henson

Second Advisor

James L. Hayward


The mass of a Glaucous-winged gull (Larus glaucescens) egg provides a convenient estimation of parental energy allocated towards reproduction. Obtaining accurate mass measurements, however, can be hindered by logistical constraints associated with field research. In this study, I create a mathematical model to estimate egg mass from easily determined measurements of length and width. Egg measurements were collected at a gull colony on Protection Island National Wildlife Refuge, WA. These measurements facilitated the estimation and validation of model parameters. A multi-variable allometric model incorporating both length and width variables provided the best estimation of egg mass.

Subject Area

Glaucous-winged gull--Eggs--Mathematics, Birds--Eggs--Mathematics, Eggs.

Creative Commons License

Creative Commons Attribution-No Derivative Works 4.0 International License
This work is licensed under a Creative Commons Attribution-No Derivative Works 4.0 International License.