By William Bond Hughes
Owls are a family of birds known to
everyone. Of the eighteen species of
owls that breed in North America , eight
species have been recorded at Hagerman National Wildlife Refuge. The three species that nest within the
refuge, eastern screech, great horned and barred, are the owls most likely to
be seen at the refuge.
Barred Owl at Hagerman NWR, by Nancy Miles Miller |
Owls are birds of prey but are not closely
related to other birds of prey such as hawks, eagles and falcons. Biochemical evidence shows that the closest
relatives of owls are the nighthawks (common nighthawk) and nightjars
(chuck-wills-widow and eastern whip-poor-will).
Both owls and nighthawks/nightjars rest during the day and hunt at
night.
Owls are superbly adapted for their
nocturnal mode of hunting. Their
proportionately large eyes enable them to see under very low light
conditions. The ear openings of many
owls are larger than usual among birds, and the opening on one side of the head
is higher than on the other side.
Together, these two adaptations enable owls to locate prey by sound even
in the dark. The flight feathers of owls
are modified so that the sound of air passing over the feathers during flight is
greatly reduced thus allowing a silent, undetected approach to prey.
Populations of many tree cavity-nesting
owls declined during the early history of the United States from intensive
logging operations that deprived them of their nesting sites. Fortunately, the ready acceptance of nest
boxes as breeding sites has resulted in the rebound of these populations. I know from personal experience that the
eastern screech owl readily accepts a box, and I know of a case where two screech
owls occupied boxes within the same yard!
Plans for building owl boxes can easily be found on the internet.
Their distinctive appearance and behavior
has led to the creation of many myths and legends regarding owls which fall
into two main categories: owls are associated
with wisdom and owls are associated with death.
An example of the wise owl can be found in
the fables of Aesop which originated in the sixth century B.C. In the fable of the owl and the other birds,
the owl advises the other birds that flax seeds should not be allowed to grow
as the resulting plants could be made into fibers which could be woven into
nets to trap the birds.
The Greek goddess Athena, patron goddess of Athens and the goddess of wisdom,
had the owl as a symbol. Coins of
ancient Athens portrayed Athena on one side and an owl on the other.
The Zuni, a pueblo tribe of the American
Southwest, have a story about the wisdom of the burrowing owl which lives in
prairie dog towns. When heavy rainfall
threatened to drown their sources of food, the prairie dogs asked the burrowing
owl what should be done. In response,
the owl began to beat a bag which contained the foul-smelling secretion of a
particular beetle. At each stroke, the
rain clouds moved farther off, and with a final blow the sky became perfectly
clear. The prairie dogs came out of
their burrows and loudly praised their “great priest, the grandfather burrowing
owl”.
In
current usage, a group of owls is called “a wisdom of owls”.
The association of owls with death is very
widespread in folklore. Among the Kikuyu
of Kenya
it is still widely believed that owls are harbingers of death. If one sees an owl or hears its hoot, someone
was going to die. An old saying in Mexico still used
today is "When the owl cries, the Indian dies".
ED Note: Woo Hoo for Owls will be the topic at Second Saturday for Youth, led by Katie Palmer, on November 10, 2012, and Owls will be Dr. Wayne Meyer's topic for Second Saturday, February 9, 2013, at the Refuge.