Watching the skies – LEICA Geovid 10x42 BRF User Manual

Page 7

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Watching the skies

It’s a cool, crisp, early October morning

and 100 people are standing together with their eyes fixed on the sky.

“Peregrine Falcon over the bunker” shouts one of them as he simul-

taneously records the event on a hand-held tally counter. In unison,

all eyes turn to bear witness to the fleeting moment, and a collective,

almost imperceptible “ahh” is uttered.

By sunset, the herald with the tally counter called out the name

“Peregrine Falcon” 256 more times, and recorded the passing of

another four thousand hawks, eagles and falcons during their

southward transit over historic Cape May, New Jersey.

Standing on the spacious hawk watch

platform in Cape May Point State Park

today, it’s difficult to imagine the Cape

May Hawk Watch of thirty years ago.

Most noticeable, the crowds of birders

were considerably smaller. Dozens during

the week (perhaps) and scores on the

weekends are nothing compared to the

tens of thousands of people who now

travel to Cape May each fall. In 1976, a

rickety table that accommodated one

person, is now a two-tiered, state-of-the-

art observation deck seats more than

200 visitors. Back then, a single person

did everything – bird counting, back yard

ornithology, and Cape May Bird Obser-

vatory ambassador. Now, two official

counters and two interpretive naturalists

handle the flow of migrating hawks and

questions from throngs of visiting hawk

watchers.

In 1976, however, the importance of

the data we were collecting to future

raptor conservation efforts was clear, and

this understanding has not changed thirty

years later. For several decades before

the start of the Cape May Hawk Watch,

raptor populations were ravaged by the

effects of DDT, a chemical used to con-

trol agricultural pests. Species like

Peregrine Falcon and Bald Eagle declined

precipitously. This debacle became the

environmental community’s rallying cry

for greater controls on pesticide use.

Thirty years of data have helped to docu-

ment the recovery of Peregrine Falcon,

Bald Eagle and other raptor species after

the use of DDT was banned. The data

also revealed more recent declines in

other species like Sharp-shinned Hawk

and American Kestrel, a diminutive

falcon.

Established in 1897, New Jersey

Audubon Society is a member supported

not-for-profit organization that has been

at the forefront of environmental educa-

tion, conservation and research for over

100 years. Initially, the Society was

formed to combat wholesale market

hunting of birds and to fight against the

decimation of birds to supply feathers to

the millinery industry. Our efforts, and

those of other Audubon societies, were

instrumental in the passage of the

Migratory Bird Treaty Act in 1911, a

regulation that still protects nearly all

bird species occurring in the United

States today.

The Cape May Bird Observatory, one of

New Jersey Audubon Society’s ten staffed

centers, made its debut the same year

that the Cape May Hawk Watch began.

Thirty years later it is a world renowned

bird watching center and a regional lea-

der in science-based bird conservation.

The Observatory entertains thousands

of visitors that come to Cape May to

experience the migration phenomena.

The scope of the Observatory’s recent

scientific work includes the study of

shorebirds during spring migration

through Delaware Bay, which is a

hemispherically important staging area

for several species en route to the Arctic,

breeding grassland birds, evaluating the

impact of wind power development, and

assessing population trends in migrating

raptors and waterbirds.

But what makes Cape May so special

when it comes to birds, especially those

species that make annual migratory

journeys. The business world mantra

“location, location, location,” applies

here. While migration occurs all over the

Northern (and much of the southern)

Hemisphere, it is not evenly apportioned.

If you look at southern New Jersey,

trapped between Delaware Bay to the

west and the Atlantic Ocean to the east,

the geography resembles a big funnel

with Cape May Peninsula at the terminus.

Prevailing northwesterly winds in fall push

southbound migrants into the funnel’s

mouth.

Tens of thousands of hawks and

millions of songbirds get “trapped” at

the end of the funnel – squeezed onto

the peninsula where they back up before

deciding to cross Delaware Bay. This

often results in spectacular hawk flights

and fallouts of migrants – much to the

pleasure of birdwatchers.

Biologists also find these major con-

centrations useful because they put large

portions of species’ population in the

same place at nearly the same time,

which is an efficient way to assess their

status. This is especially important for

many raptor species, which are difficult

to monitor during the breeding season.

Data collected during the Cape May

Hawk Watch’s 30 year tenure has been

instrumental in understanding the

population dynamics of several species.

Like most things in life, environmental

education, conservation, and research

can be an expensive business. The suc-

cess of New Jersey Audubon Society and

Cape May Bird Observatory is dependent

in large part on the financial support of

its members and cooperative agreements

with government agencies. Another

important means of support are partner-

ships with corporate entities that have

clear natural resource conservation

awareness and a connection with the

bird watching and conservation

community. Leica Sports Optics is

one of these entities.

The history of birding is intrinsically

linked with the history of optics. As optics

improved, so too did birding’s skill level,

and popularity. Leica has been at the

forefront of this birding revolution. The

Trinovid binocular has been a stalwart of

the birding community since its introduc-

tion. Leica continues to be a leader in

optical equipment innovation, especially

for bird watching applications. This is

most evident in its state-of-the-art Televid

APO spotting scope and the recent deve-

lopment of the Ultravid binocular. This

binocular features exceptional field of

view, superior depth of field, and close,

fast focus, making it the ideal instrument

for flight identification of raptors and

other bird species. This is why we feel

strongly that Leica Sport Optics is the

ideal partner for the Cape May Hawk

Watch joint venture. If you visit Cape May

between September 1 and November 30,

you can see the fruits of this cooperative

agreement – and more than a few birds.

David Mizrahi, Ph.D.

Vice-president for Research

New Jersey Audubon Society

Leica Supports Research in Cape May

Leica is the official sponsor of the Cape

May Hawk Watch, and has supported

other co-operative research efforts as

well. In addition to providing funds for the

Hawk Watch staff, Leica supplied world

class optics for the project.

Leica binoculars and scopes are un-

rivaled for clarity and light gathering

ability, making the job of spotting and

identifying birds at a distance a breeze.

This fact is not lost on the thousands of

visitors that come to the Hawk Watch who

are encouraged to use the exceptional

optical equipment.

www.njaudubon.org/sites/HUCMBO.html

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