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Morro Rock is known around the world
for its resident Peregrine Falcons. On any given day, groups of
people can be seen in the parking areas below the Rock with spotting
scopes, binoculars, and cameras pointed skyward, focused on the
falcons and their young. The birds are clearly visible in front of
their aerie, on the surrounding rock ledges, and in the airspace
around the Rock. Even more remarkable is the second Peregrine Falcon
pair established on the Rock's north and east faces a few years ago.
Spring of 2007 saw two pair of
falcons fledging three young per nest on Morro Rock Considering that
in the late 60's there were only three breeding pair in the entire
state of California (there are now over 200 pair in the state), a
total of ten falcons on the Rock is a very cool thing.
The reintroduction of the Peregrine
Falcons to their historic nesting site at Morro Rock, along with
their reestablishment throughout much of their former range in North
America, is a truly wonderful and ongoing effort. Most of the credit
goes to a number of universities, organizations, and a host of
dedicated individuals. The effort to save the Peregrine Falcon in
North America was born in the late 60's at Cornell University under
the direction of
Dr. Tom Cade. Following in the mid-70's, the
Santa Cruz
Predatory Bird Research Group (SCPBRG) was established at the
University of Santa Cruz, modeled after the Cornell program. This
program, headed up by
Brian Walton, was key to the success experienced throughout the
western United States.

Peregrine Falcons at Morro Rock
These photos are by Cleve Nash and
are used here
with his permission. Click on any to see larger
versions.
The focus of so much attention on
Morro Rock and it's attendant falcons is completely understandable.
However, the entire estuary, the harbor, grass island, the
marsh, the sandspit and all the surrounding habitats are rich with
birds of prey. The list would include Peregrine Falcons, Osprey,
Northern Harriers, Red-tailed and Red-shouldered Hawks, Merlins,
Kestrels, White-tailed Kites, and Great Horned Owls. On a good day
out on the estuary in the outriggers, it is not odd to see five or
six of these species.
Click on any of the headings below for photos
taken of that bird in the estuary.
American
Kestrel Falco sparverius
The estuary's smallest and most
colorful aerial hunter. Smallest of the North American falcons, this
females (males have slate blue wings) stopped by the Pasadena
Landing to hunt the dune around the bench that looks out over the
bay.
With the help of the onshore breeze,
the little falcon was able to kite almost motionlessly over the
dune. She dove down to the vegetation once and climbed back to her
hover with what looked like a Praying Mantis clutched in her talons.
While in flight, she ate the head and thorax, then grasped the
abdomen in her talons and tucked it under her tail. She continued to
hover and hunt the dune for about 10 more minutes, moving very
close, seeming almost to pose. After a while she flew off with the
rest of her meal.
Northern Harrier Circus cyaneus
Once commonly called the Marsh Hawk,
the "correct" name for this raptor is the Northern Harrier.
Conspicuous with it's white rump, the Harrier is not easily confused
with other birds of prey. When observing, it doesn't take long to
realize the name is really quite apt, for the dictionary definition
of the verb "harry" is: 1) to raid, especially repeatedly; to rob;
to plunder; 2) to torment or worry; harass; 3) to force or
push along. From the outriggers, we watch these behaviors on a daily
basis. That being said, when we see that flash of white rump,
someone usually blurts out, "Marsh Hawk."
We first saw this juvenile Northern
Harrier (dark head and orange breast) featured in many of these
pictures in the summer of 2006. For the next sixteen months we would
see this bird almost every day we paddled. Whether soaring over the
marsh, hunting the sandspit, or perched amongst the scrub on the
spit, we would almost always see this bird.
A very bold bird, we have seen it on
several occasions harry both Osprey and falcons with prey. Perhaps
the Harrier best demonstrates its flight skills as it cruises over
the sandspit searching for prey. It flies extremely low over the
sandspit scrub, in between bushes, wingtips inches from the foliage
just above the ground. Looking for small birds or mammals on which
to pounce.
Spring of 2008 and we no longer see
this bird in juvenile plumage, but we no see both male and female
Northern Harriers in adult plumage in the same estuary haunts.
Osprey
Pandion haliaetus
Fall of 2006 saw the arrival of
perhaps as many as half a dozen Osprey to the Morro Bay area. Osprey
are not really rare visitors. Indeed, according to Jim Kroll, Morro
Bay's former Harbor Master, years ago a mated pair had taken up
residence in a tree in the state park. This pair lived in the
estuary for a number of years, but abandoned the nest when the tree
was blown down during a winter storm in the mid-80s.
During the intervening years, Osprey
could be seen occasionally in the Avila Beach and Morro Bay areas
and also at our local lakes during the fall and winter. Since the
fall of 2006, Osprey are a daily site on the estuary. They can be
seen hunting the coastline of Estero Bay from Cayucos south to the
beach at Cable Landing. From the outriggers, we routinely watch them
fly in from the ocean over the sandspit with fish of amazing size
clutched in their talons.
On any given day, a sharp eye will
spot Osprey perched at any number of sites - on the masts of the
moored sailboats in the harbor, on the channel markers, on the
stumps in the marsh, or in the trees at Baywood Park. Given the fact
that we have seen Osprey virtually every time we have paddled the
outriggers since mid-September of last year (over 14 months), it
would seem a pretty good bet that after an absence of over two
decades, we might once again have resident Osprey in Morro Bay.
Peregrine Falcons Falco peregrinus
On many occasions, we have watched
the Peregrines at the north end of the harbor and on Morro Rock from
the outriggers. It is common to see a pair of falcons flying to and
from their lofty vantage point on top of the stacks. Paddle around
to the south face of the Rock and you have an excellent view of an
aerie and favorite perches (looking down from high upon miles of
sandspit beach with all of those tasty little Snowy Plovers).
In any case, falcon watching at or
around the Rock is best done with binoculars and a good neck
masseuse. Watching at the Rock is great. In the springtime, you get
to see falcons go to and from their aerie, nesting and raising their
young. We prefer to watch falcons in the other areas of the estuary
where they work and play.
The tall Cypress trees that grow in
Los Osos from the Back Bay Inn around the point to the Pasadena
Landing where we launch the outriggers, are favorite falcon perches.
One day, while rigging the canoes, we heard the unmistakable call of
a Peregrine in one of the trees. Looking up, we saw a pair of
falcons flying in from the north to a juvenile in the tree. On
another occasion, again at the Pasadena Landing, we observed a
Peregrine flying in from the sandspit, prey in talons, with a noisy
gull in hot pursuit. This just where we launch the canoes to "go
birding!"
Once on the water, Peregrines can
frequently be seen in the morning perched on top of the high dunes
of the sandspit. From these promontories, they command views of both
the ocean and bay beaches, where any number of plump little prey
items might appear. Depending on whether the falcon has had
breakfast yet or how close it is to dinnertime, that prey item could
easily disappear, plucked from the beach by a grey blur out of the
azure in, literally, the blink of an eye.
We once witnessed a Black-crowned
Night Heron avoid being breakfast by the width of his crest, only a
hard-diving right turn into a stand of bull rush saved him from the
talons of the peregrine that came streaking down from the top of the
overlooking dune. It was a very close escape.
Sheltered from the prevailing wind by
Black Hill and full of a plethora of juicy shorebirds and ducks, the
marsh is the perfect amphitheater for a falcon. It doesn't take an
ornithologist to figure out that it is the best place to watch them
hunt.
Many people would think that the word
"birding" would be out of place in the same sentence with "exhilarating"
or "exciting." These people have never watched Peregrine Falcons
hunt. A favorite falcon tactic is to soar over the eastern edge of
the marsh or the Elfin Forest, then go into a stoop, diving in from
the east or south. The chase is on as the sight of the diving falcon
scares flocks of prey into the air. Many of these dives end with a
meal for the falcon, but the majority of attacks don't result in a
kill. There are times when the falcon gets out-maneuvered or the
intended prey gets lucky. But, in many instances, the falcon will
simply break off the attack at the last moment, zoom past the
fleeing prey, and climb out over the bay.
We once watched a falcon repeat this
diving attack four or five times over the period of an hour and not
make a kill. It seemed as if the Peregrine was just practicing and
it looked like GREAT fun! Which makes me wonder if some of these
chases are a matter of honing their skills or do they just enjoy
"raising cane" over the marsh??
Even a kill doesn't guarantee a meal.
One day we watched a Peregrine fly past (about 50 feet away) with
prey in talons, land on a nearby stump, and start to pluck it's
kill. As we drifted down-channel to a position closer to the stump,
a Red-tailed Hawk swooped in and chased the falcon off the kill. The
falcon took flight and began a half-dozen dive-bombing attacks on
the Red-tail, but the hawk got the meal.
In another instance, while up one of
the middle channels of the marsh, we watched a Peregrine fly close
overhead with prey in talons. As it flew away from us, a Northern
Harrier dived in from above, forcing the falcon to drop its prey
onto the pickle weed. Before either bird could retrieve the kill, up
popped a little coyote, which promptly dashed over, grabbed dinner, and
trotted off.
Peregrines are difficult to
photograph in flight. They tend not to loiter in any one bit of sky
for very long. When they fly by, they are usually moving at a pretty
good clip. When they go into a stoop (dive), they accelerate to
speeds that your mind would have a hard time associating with a bird
- or anything other than a jet, for that matter. Generally
considered to be capable of over 200 mph -
and some say closer to 250 mph - the Peregrine Falcon is, by
far, faster than anything most people encounter in daily life.
Red-shouldered Hawk
Buteo Lineatus
A very vocal bird, Red-shouldered
Hawks can be seen and heard throughout the estuary. Some of their
favorite haunts are Sweet Springs Nature Preserve, the State Park
Marina, the Museum of Natural History, and the rookery south of the
Inn at Morro Bay. Red-shouldered Hawks favor hunting from a perch.
All of these areas provide plenty of trees from which the hawks and
the areas adjacent to the shoreline. On occasion, we see them
soaring over the sandspit.
Broad-winged, stocky, and beautifully
marked, Red-shouldered Hawks are frequently seen in pairs. Widely
distributed throughout the county, they are commonly seen perched on
the wires along Los Osos Valley Road.
Red-tailed Hawk Buteo jamaicensis
North America's most widely
distributed hawk is present from Alaska to southern Mexico, on both
coasts, and virtually everywhere in-between. So it is no real
surprise that we see Red-tailed Hawks from one end of the estuary to
the other. We don't see them every day, but they are common
throughout the surrounding countryside and SLO county.
We see them most often soaring over
the sandspit and in the marsh area. As much as we love our big
Red-tails, they are on our "Raptor non grata" list lately. A few
months back, two renegade Red-tails (probably migratory birds with
no ties to the local community) decided that the Black-crowned Night
Herons roosting in the trees in the State Park Marina, were fair
game. Over the course of a few days, the Red-tails plucked the
herons out of the foliage at an alarming rate. The survivors decided
that their traditional roosting area was no longer safe and left the
area. We're not sure where they fled to, but hopefully the hawks
don't know either.
A personal note to any Red-tailed
Hawk reading this, "I mean, really, MORRO BAY is a BIRD SANCTUARY
(you Bone-heads). Eat all the squirrels, gophers, field mice - ah
heck, we'll even throw in a few (endangered) kangaroo rats, but
PLEASE don't eat ALL the Black-crowned Night Herons!!!"
White-tailed Kite Elanus Leucurus
Certainly one of the estuary's most
striking birds of prey. We see Kites most often in the marsh and Los
Osos Creek areas. Conspicuous with their white plumage and their
frequent kiting and hovering, they are a most elegant raptor. A very
interesting bird to watch hunt, they hover over an area and, when
prey is spotted, they raise their wings to the vertical and drop out
of the sky, talons first.
Most of the pictures here are of a
young Kite (evidenced by the rufous chevron on the breast) that hung
out in the trees and hunted the little wetland at the Pasadena
Landing for a few days.
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