Anybody fancy a copy of the below paper?

Measuring egg size using digital photography: testing
Hoyt's method using Florida Scrub-Jay eggs

Received 14 August 2006; accepted 22 November 2006

ABSTRACT. Egg volumes are most often estimated using a mathematical model that
incorporates length and
width measurements and a species-specific shape variable. Although adequate in
many respects, this technique
does not account for intraspecific variation in egg shape. We developed a
computer-automated technique that
uses calibrated digital photographs to render precise measurements of several
egg-size parameters including length,
width, volume, and surface area. The system extracts egg outlines from
photographs, and divides each egg into
latitudinal slices that are subsequently regarded as simple geometric shapes
(cylinders or cone frustra) with volumes
and surface areas that can be summed to generate size parameters for the entire
egg. We tested this technique
using 491 eggs from Florida Scrub-Jay (Aphelocoma coerulescens) nests and
compared the resulting egg volumes with
volumes calculated using the preeminent method of estimating volume from linear
measurements. Our method
was highly accurate, and differences between the volumes from our method and the
alternative method were
strongly associated with variation in egg shape. Advantages of our technique
include decreased handling of eggs
and increased accuracy. Software resources and additional information regarding
the technique are available at
http://www.archbold-station.org/abs/data/birddata/Bridge-JFO-eggsize.htm.