Pennsylvania Game News - February 2014 - 53

from almost all-white birds
to some with just a few
white feathers, are fairly
common and are reported
from almost all areas. Most
birds are from half white to
mostly white."
Our bird was mostly
white and did not have a
dark area on its nape as
most do. In addition, our
bird had dark eyes and an
orange beak and talons.
I expected to find more
information about white
redtails in my many books
on birds, but even The Birds
of North America's definitive
account of red-tailed hawks
failed to mention this
phenomenon.
I was more successful
when I googled "albinism
in birds and animals" and
"partial albinism in red-tailed hawks"
on my computer. The former convinced
me that terms for white creatures
varied, although pure albinism in
birds is caused by a genetic mutation
that interferes with the production
of the melanin or dark pigment that
determines the black color of birds'
feathers.
One source declared that partial
albinism is now called "leucism" and
that the word comes from the Latin
"leuk" or Greek "leukos" meaning
"white." But another source, which I
found easier to understand, had a chart
that differentiated between three types
of albinism.
A true albino is white or pink all
over with pink eyes and has little or
no ability to produce colors. Those are
indeed rare among mammals and birds.
FEBRUARY 2014

GW Putt

For instance, Henry Kendall, a master
falconer in St. Louis, has reported
600 sightings of oddly colored redtails
throughout North America in 10 years.
Of those, only one was a pure white
albino with pink eyes.
Those eyes are pink because red
blood cells in the retinal blood vessels
beneath are not hidden by pigment.
For this reason albino birds and animals
often go blind since they don't have
pigments in their eyes to protect them
from sunlight.
A leucistic creature is white or pink
all over, its eyes are usually blue, and
it has little ability to produce color.
Another source says a leucistic animal
is not pure white, its pigmentation
is diluted, and its plumage is lighter
than usual, but not pure white. David
Bird, an ornithologist, recently defined
53



Table of Contents for the Digital Edition of Pennsylvania Game News - February 2014

Contents
Pennsylvania Game News - February 2014 - Cover1
Pennsylvania Game News - February 2014 - Cover2
Pennsylvania Game News - February 2014 - Contents
Pennsylvania Game News - February 2014 - 2
Pennsylvania Game News - February 2014 - 3
Pennsylvania Game News - February 2014 - 4
Pennsylvania Game News - February 2014 - 5
Pennsylvania Game News - February 2014 - 6
Pennsylvania Game News - February 2014 - 7
Pennsylvania Game News - February 2014 - 8
Pennsylvania Game News - February 2014 - 9
Pennsylvania Game News - February 2014 - 10
Pennsylvania Game News - February 2014 - 11
Pennsylvania Game News - February 2014 - 12
Pennsylvania Game News - February 2014 - 13
Pennsylvania Game News - February 2014 - 14
Pennsylvania Game News - February 2014 - 15
Pennsylvania Game News - February 2014 - 16
Pennsylvania Game News - February 2014 - 17
Pennsylvania Game News - February 2014 - 18
Pennsylvania Game News - February 2014 - 19
Pennsylvania Game News - February 2014 - 20
Pennsylvania Game News - February 2014 - 21
Pennsylvania Game News - February 2014 - 22
Pennsylvania Game News - February 2014 - 23
Pennsylvania Game News - February 2014 - 24
Pennsylvania Game News - February 2014 - 25
Pennsylvania Game News - February 2014 - 26
Pennsylvania Game News - February 2014 - 27
Pennsylvania Game News - February 2014 - 28
Pennsylvania Game News - February 2014 - 29
Pennsylvania Game News - February 2014 - 30
Pennsylvania Game News - February 2014 - 31
Pennsylvania Game News - February 2014 - 32
Pennsylvania Game News - February 2014 - 33
Pennsylvania Game News - February 2014 - 34
Pennsylvania Game News - February 2014 - 35
Pennsylvania Game News - February 2014 - 36
Pennsylvania Game News - February 2014 - 37
Pennsylvania Game News - February 2014 - 38
Pennsylvania Game News - February 2014 - 39
Pennsylvania Game News - February 2014 - 40
Pennsylvania Game News - February 2014 - 41
Pennsylvania Game News - February 2014 - 42
Pennsylvania Game News - February 2014 - 43
Pennsylvania Game News - February 2014 - 44
Pennsylvania Game News - February 2014 - 45
Pennsylvania Game News - February 2014 - 46
Pennsylvania Game News - February 2014 - 47
Pennsylvania Game News - February 2014 - 48
Pennsylvania Game News - February 2014 - 49
Pennsylvania Game News - February 2014 - 50
Pennsylvania Game News - February 2014 - 51
Pennsylvania Game News - February 2014 - 52
Pennsylvania Game News - February 2014 - 53
Pennsylvania Game News - February 2014 - 54
Pennsylvania Game News - February 2014 - 55
Pennsylvania Game News - February 2014 - 56
Pennsylvania Game News - February 2014 - 57
Pennsylvania Game News - February 2014 - 58
Pennsylvania Game News - February 2014 - 59
Pennsylvania Game News - February 2014 - 60
Pennsylvania Game News - February 2014 - 61
Pennsylvania Game News - February 2014 - 62
Pennsylvania Game News - February 2014 - 63
Pennsylvania Game News - February 2014 - 64
Pennsylvania Game News - February 2014 - 64a
Pennsylvania Game News - February 2014 - 64b
Pennsylvania Game News - February 2014 - Cover3
Pennsylvania Game News - February 2014 - Cover4
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