>We don't don't have those color of deer (or bear for that
That may be so, but the Red Deer inhabits most of Europe, the Caucasus Mountains region, Asia Minor and parts of western and central Asia. It also inhabits the Atlas Mountains region between Algeria and Tunisia in northwestern Africa, being the only species of deer to inhabit Africa. Red Deer have been introduced to other areas (and run rampant) including New Zealand, Australia and Argentina. In many parts of the world the meat (venison) from Red Deer is widely used as a food source. So that article is possibly relevant to a lot of hikers and hunters outside of USA.
>Blaze orange shows up real well at dusk and
dawn and is quickly recognizable by others as a hunter. No
other color is like it in nature. The bright lime/yellow
roadworkers wear is another good color.
From his entire paper:
"The colour recognition project demonstrates that that no one colour is satisfactory as a
protective factor for all conditions. ‘United Nations’ or ‘NATO’ blue is the most visible
colour in the greatest variety of conditions. While high vis orange was good in most
conditions, there are circumstances where this colour can be confused with deer,
especially in the open and in some light conditions. Red had a somewhat similar result.
SAR yellow was readily seen in most conditions, but the large amount of this colour in
the bush, especially when wet, makes this colour of limited value."
As for the blue, if you're a hiker, you only really care about being seen by the hunter to protect yourself, so what's the harm. As a hunter, Green also presents:
"so long as everything around remains still, the deer see almost nothing at all’. Allen suggests
that deer are almost colour blind, and ‘beyond 20 metres they are unable to distinguish
colours at all and their world dissolves into a featureless grey haze, faintly tinged with
sepia’. While the deer’s eye is capable of seeing a range of colour, Allen argues that the
visual lobes of the deer’s already tiny brain are incapable of analyzing and interpreting it.
For the deer, the senses of smell and hearing ‘take up a relatively large part of what little
brain it has’. Allen argues that one cannot deduce what an animal sees by looking at the
optics of its eye: ‘An animals eye can be optically identical to a human’s – and still see an
entirely different world because its brain is wired in a different way’. However the eye of
the deer is not at all useless. It is ‘packed full of movement detectors – to the virtual
exclusion of shape and colour detectors’.
So, arguably, the deer’s eye is not capable of seeing orange, and its brain is incapable of
seeing almost any colour at distance, relying instead on detecting movement. "
And Green has also done a thorough review of the Virginia data wher wearing high viz orange is mandatory for hunters:
" In 39.4% (339 out of 860 cases) of all hunting accidents in Virginia involving
firearms (but excluding falls), 1987-2001, the victim was wearing hunter orange
(to the legal requirement).
In 57.1% (273 out of 478 cases) of deer hunting accidents only in Virginia
involving firearms (but excluding falls), the victim was wearing orange (to the
In 34% (117 out of 344 cases) of all hunting accidents in Virginia involving
firearms where shooter targeting was a factor (excludes suicide, includes ‘victim
moved into line of fire’, ‘victim covered by shooter’, ‘victim mistaken for game’)
the victim was wearing orange (to the legal requirement).
In 63.9% (94 out of 147 cases) of deer hunting accidents only in Virginia
involving firearms where shooter targeting was a factor (excludes suicide,
includes ‘victim moved into line of fire’, ‘victim covered by shooter’, ‘victim
mistaken for game’) the victim was wearing orange (to the legal requirement).
So all he's saying (with 20 years of in the field experience and research) is that blaze orange will not always protect you, and that blue is the universally most visible colour in most conditions, and the deer can't see it if you are more than 20 metres away or don't move. Hardly dangerous information.