Signs of spring are hard to hide in the wild
VIC LEIPZIG AND LOU MURRAY
Officially, spring won’t be here for another month, but the birds and
bees have a jump on the calendar.
All over town, critters are courting. If you’re at all attuned to
nature, you’ll see it. Just take a walk through Central Park or the
Bolsa Chica wetlands and look for the unmistakable signs of amorous
adventure.
Since early January, red-shouldered hawks have been chasing each
other through the sky in courtship flights. These noisy hawks of the
forest call like crying babies all day long as they chase each other
through the trees and sky. Several of these beautiful hawks live in
Central Park, with at least one pair nesting at Shipley Nature
Center.
Last year, the pair at Shipley raised a brood of young hawks.
Unfortunately, the female was killed by a car as she flew across
Goldenwest Street last spring. The fate of her newly fledged young
hung in the balance. Young hawks learn to hunt from their parents,
and without the female to teach them how to hunt, their survival was
none too certain. Unfortunately, one of the young hawks suffered the
same fate as the mother a week after her death in another terribly
unbalanced collision of bird with car.
The remaining young hawks hung out in the trees at Shipley,
calling their plaintive cries, waiting for an adult to come feed
them. They waited for a meal that never arrived. Eventually, they
learned to hunt on their own and their cries of hunger ceased. With
plenty of ground squirrels, lizards, snakes, bunnies, and small
birds, the Shipley Nature Center provided the hawks with a nicely
balanced diet.
With the coming of yet another spring, a new pair of
red-shouldered hawks has pair-bonded, courted and mated at Shipley
Nature Center. After weeks of courtship, the actual mating is a brief
coupling that lasts only a second or two with the male balancing on
the back of the female as she remains perched on a tree. If you
blink, you miss it.
Humans aren’t the only observers of this springtime ritual. Crows
are very attuned to the courtship behaviors of other birds. As soon
as the hawks mated, the crows stalked them, waiting for eggs to
steal.
The crows do the same thing at the Bolsa Chica, where great blue
herons are beginning to show an interest in their nesting sites. A
few weeks ago, we counted five pairs of great blue herons, all
looking for good nesting sites in the eucalyptus trees on the bluff.
As soon as the herons begin nest-building in earnest, the crows will
begin looking for an easy meal of eggs or young chicks. The crows
stalk ducks and many other courting birds. They’ve even been observed
hunting cooperatively at the Bolsa Chica, walking across the oil
fields in an evenly spaced formation, gobbling up every killdeer and
snowy plover egg and chick that they encounter. It’s a minor miracle
that any birds are able to rear their young, given the explosion in
the crow population in recent years.
The coyotes also are responding to the change in season. The red
female coyote that dens at Shipley Nature Center raised three pups
last spring. Her boyfriend lives on the Bolsa Chica mesa along with
several buddies, but he’s been in Central Park recently, probably
lured by the approach of mating season. He’s a smart animal. He
crosses Goldenwest Street with more craft than the average 5-year-old
human. He looks for traffic coming from one direction and waits until
it’s clear. Then he saunters to the median. Once there, he sits down
and looks in the other direction, waiting for a break in traffic from
that direction before proceeding. He’s been hanging out at Shipley
Nature Center the past few weeks. A new den of pups should be born in
April, right about the time that the ground squirrels and bunnies are
having their babies.
For a short time in the late spring, Shipley Nature Center is
alive with what appears to be way too many hopping, running, furry
little things, all intent upon devouring every plant in sight. Just
when it seems that there will be no vegetation left, nature balances
itself. The coyotes hunt down the surplus bunnies, squirrels and
mice. We can tell from the bones left behind at Shipley Nature Center
that the coyotes are eating ducks and geese as well. The food chain
in town is intact and functional. Insects eat plants. Birds and
lizards eat insects. Snakes eat mice. Hawks eat snakes and lizards.
The great horned owls nesting at the library eat anything running
around at night. The barn owls in town seem especially fond of rats.
The raccoons, opossums and skunks find plenty to eat as well.
Somehow it all works out and life goes on, spring after spring
after spring. The remarkable thing is that all this is happening in
the midst of an urban environment. Because people in town have saved
some sizable chunks of native habitat from development and have
retained at least some wildlife corridors to connect the fragmented
habitats, all this wildlife can survive in a city of 200,000 people
that is in turn surrounded by 13 million other people in neighboring
communities. Amazing.
* VIC LEIPZIG and LOU MURRAY are Huntington Beach residents and
environmentalists. They can be reached at vicleipzig@aol.com.
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