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Ó Michael Woods |
The sparrowhawk came flashing across the
lawn in the direction of the birdfeeders hanging in an old
apple tree and the small birds fled in a flurry of wings.
The hawk darted left and right as it tried to lock on a
target, but it overshot and settled on the branch of a
nearby tree. All the birds had disappeared, except one. A
great spotted woodpecker was left clinging to the peanut
feeder. It remained motionless for a full minute. Then it
moved around the feeder to place it between itself and the
sparrowhawk. Another two minutes elapsed before it started
feeding again, while the tits and finches only emerged from
their hiding places in the bushes six minutes after the
alarm.
Freezing to avoid detection and moving out of sight are
responses well-suited to a woodpecker that spends its time
pressed against trunks and branches. One the other hand,
flight is the best strategy for small birds caught in the
open. Either way, it is vital to have split-second reactions
at the very first hint of danger from a sudden onslaught. We
can see that the small birds at a feeder are constantly on
the qui vive by the way that they are continually
scanning their surroundings with rapid head movements. Yet
it would be wrong to think of birds, and other animals,
living in a perpetual state of fear. Presumably they treat
sparrowhawks as we treat motor cars. Both are potentially
lethal but we learn to live with them. Survival depends on
being aware and keeping out of harm's way.