Madrone On Line
 

Sonoma Mountain Journal
by Diane Hichwa

At one Sonoma Mountain home,
it's been the "Year of the Owl."

When a pair of Great Horned Owls
nested and produced two young, the Hichwas
got a close-up look at owl family life.
12-31-01 Just before 5 p.m. the great horned owls (GHO) duet-he's near the old red-tail nest and continues hooting for ten minutes; she's behind the house and joins in for a few minutes. The frogs chime in from the pond.

2-10-02 A spring weekend! Two red-tailed hawks interact-first by slowly circling in the thermal, then the smaller male dives at the larger female. She tucks and ducks. They circle up again, together. A 2nd dive and an evasive maneuver. A red- shouldered hawk calls across the valley and 2 turkey vultures drift on by.

2-15-02 At dusk, 5:30, the two owls are calling out front. I sit by the round window and finally one owl takes a long flight over the terraces and into the woods behind us. She calls/erks again from out front. Not wanting to disturb the area I go through the house and stand on the front porch, scanning. There is a head above the old red-shouldered's nest that was a red-tailed's nest last year! The owl is sitting in the nest! I back off, wanting NO disturbance! Later a bat zips around in the light inside the garage, then scrambles into the ½ inch space above the cupboard.

2-16-02 As soon as it's light I check on the nest from the front porch. Yes, the rounded head with ear tufts is still in the nest. A late afternoon check finds her still sitting tight. This evening we're doing an owl program at Bird Rescue. It rains just as we begin talking about owls of Sonoma County and seeing our residents. Finally the rain on the metal roof lets up. Our big group walks to the big palm tree. In my flashlight beam I can see a white streak-is it owl? Or plant? One child sees movement. I see what looks like facial features. Still unsure. Now, yes, it is a barn owl! The eyes shine red back to me. Everyone sees it before it flies. Pellets under the tree reveal two big gopher skulls, a bird skull and mice that are all part of the diet of the owl.

2-27-02 Now a red-tailed hawk flies past with a long branch. He lands to the left of the owls. A nest is underway! One hawk waits, then the other flies in with a stick and the first hawk flies off-and back with a stick. I take my breakfast on the front porch so I can watch.

3-5-02 After a big windstorm no more hawk action is seen. Was the nest deemed to be too exposed? Calypso orchids are in bloom below the nest. It's great to greet these old "friends".

3-13-02 The owl sits high in the nest. Just before dark she calls. At 10:30 p.m. she calls loudly and repeatedly. This could be Day 26 of incubation (typically 26-35 days)!

3-18-02 The red-tail seems to be landing on a well-formed nest. GHO is steadily sitting. At 7 p.m. an owl flies in; with food?

3-20-02 The first day of Spring and black-crowned night herons returned today to Penngrove (where they have nested since the 1930s). A red-tail roller-coasters across the yard-tucked wings, a dive, upswing and again. He goes to the nest area. A pileated woodpecker calls twice and flies from our yard to the other side of the valley; is this his yearly spring review of the area? (He's been heard 3-11 and 3-23 in previous years.)

3-28-02 Standing up in the woods I can hear the owlet(s?) softly calling from the nest. In the full moon I cannot see mom; is she off the nest?

4-3-02 A full day: our moms have arrived from Connecticut. Towards dusk we get a look at the owl's nest. YES! There's a fuzzy white head low in the nest. By evening the calling "eeps" of a youngster is evident, even from the front porch. He's stronger.

4-4-02 Before we leave town for Sea Ranch Mom and I have time to check the nest with the spotting scope. I suspect a 2nd youngster; to the right rear is movement that looks unconnected to the big owlet. Nothing for sure, just a hunch.

4-8-02
Returning to Santa Rosa we check right away to see if "all's right with the world". Yes, there are still 2 chicks but they've grown to a soccer ball sized 12 incher and a ganglier 9 incher. We can tell who's getting first dibs on the food! After dark Mom and I sit on the front porch with our cups of tea and listen to the "sheep" calls of the owlets.

4-9-02 Red-taileds call and fly in amidst commotion at the nest. Mating activity? Then one's gone. The owls pay no attention.

4-10-02 Today it's hot-the baby owls sit there, panting, in the afternoon sun.

4-11-02 In the morning we all get to see the adult GHO. Twice as I walked down the driveway to fill feeders I have scared up a big bird from the madrone and oak trees. I expected the red-tail so it wasn't until the 2nd look that I recognized the adult owl! He sits dead-center on a big horizontal branch beyond the pond. He's easy to find with 5 Stellar jays squawking and flying around him.

4-13-02 At 6:50 p.m. the owl lands on that same horizontal branch past the pond. She flies past with a long dangling item, red and opened. I grab the scope and head for the front porch. The mom lands in the big fir and I can scope her-her tail hangs over the branch but under her foot is a gopher snake, and a big one. She "erks", then heads into the nest and stays awhile, tearing dinner into bite-sized pieces.

4-15-02 The female "erks" and another snake flies by. I seldom see snakes here; where has she found two? She stops again in the Douglas Fir and calls a few times before heading into the nest. She eats some, then the owlets get fed. The male drops in briefly with a rodent-drop and go. We're having a cold snap so mom settles in and stays at the nest as a big down coverlet!

4-18-02 At 6:30 p.m. mom calls a few times, the jays squawk, and into the nest mom flies-empty "handed". She pulls something up from the nest bottom and tears off pieces, feeding them to the largest chick, Jeff. (They beak at each other and wobble around and cuddle up side by side but their size difference makes me think of a Mutt and Jeff team.) Finally in worms Mutt, between mom and Jeff and almost under mom's legs. She wants food too. She gets it all right-mom hands her an entire crow's leg. Thigh first it goes down until only the crow's foot is sticking out of Mutt's mouth; a few more gulping rollovers and it disappears. Mom tears the next piece for Jeff and I see a long black crow tail go down his throat-maybe a bit fuzzy feeling? Another bite or two and the smaller Mutt again gets the 2nd leg! She downs it but I couldn't imagine how the first leg fit in much less two! A jay dives in and actually hits mom on top of the head. Undaunted, she rummages in the bottom of the nest and pulls up the second course-1/2 a rat. Once in a while mom swallows a morsel herself as she proceeds to feed each chick a few more bites. They stand in front of and under her so she pulls a bite off and they beak up at her, taking it from her beak. Behind me in the woods the jays squawk as if they've got the 2nd owl located, but I don't see it. A chick stands, wobbles, stretches its wings and poops over the nest edge, then walks back to the dinner table. I swing the scope over to check the red-tails; one stops at the nest briefly then takes off. A delivery? The owlets are beginning to show ear tufts and 2 inch long primary wing feathers. One chick looks down at me from between mom's legs, under her tail; the other peers from under her chest.

4-19-02 A tail pokes beyond the hawk's nest; she's sitting! Earlier there was one noisy in-and-out exchange.

4-28-02 It's time to review the rest of the yard. The pileated woodpecker is still being seen in the bigger trees past the owl's nest. A California towhee is still going from window to window, trying to chase that reflection out of his territory! (and my windows are far from clean.) These towhees are nesting in the butterfly bush that arches over the path; the nest is just at head height. Plenty of opportunity for disturbance but she sits tight! Nestboxes around the yard have western bluebirds and 2 sets of chestnut-backed chickadees. Beautiful little faces with open mouths appear at the nest hole. They must stand on top of one another to reach that height. Brown creepers are always in evidence, calling "zeet, zeet, zeet-l-dy, zeet" and flying to the base of a tree, working upward gleaning bugs. Black-headed grosbeaks sing like run-on robins. Bushtits have hung their "sock" of mosses in the live oak where caterpillars are a ready food supply. House finches are trying for a second year to nest atop the porch light. They too are often disturbed-especially when I come in at night and can't go through the garage into the house because there are big brown bats roosting on the door. The red-tailed hawks are doing noisy exchanges at the nest. As the owl chicks are bigger the female owl comes in later now.

5-4-02 Back in town in time for Ann, Bryant and I to observer the owls, our evening entertainment. Both chicks stand big and tall. Some "sheep" calls at 6:45 but no sign of mom. As I say, "It's staying light longer. I imagine she won't be in until 7:15" Ann and Bryant head back to the house to bring wine and cheese. In accordance with "Murphy's Law" mom GHO comes immediately with food and lots of commotion from the owlets. Even though it's warmer mom stays with them; maybe it's because she knows they're "teenagers" and teens try stupid things when left alone! Jeff lurches around on the platform and, in dare-devil fashion, stands at the very edge of the nest.

5-5-02 Both red-tails are at the nest; a swap of places. He stands at the edge pulling food apart, but it looks like only to feed himself. The towhee goes from window to window, batting at the window with his wings, trying to chase "that other" towhee away.

5-7-02 Chickadees are everywhere at the feeders and in the trees; must be fledged out of their nestboxes. Bluebirds are still noisy in their box. Marilynn Scott comes, worried she'll miss the owls if she waits longer (and she would have!). We get good looks at both owlets.

5-8-02 This morning we have branchers! The owlets stand 8 feet above the nest at 1:00 and 2:00 (birders use position on a clock face to help others locate birds). By evening only one is visible. I watch as long as I can before going to my meeting; no food yet from mom.

5-9-02 One bird, Mutt, stands on a branch. We look under the nest for problems but no sign of Jeff. At least he hasn't fallen below. Mutt stays all day on the big branch at a 45 degree angle. Same spot.

5-10-02 Mutt's in the same spot this morning. I hope he's being fed. (I guess if he wasn't he would have fallen off the branch by now.) Tonight one owlet calls in a tree to the left. I listen, but no second call. At 10:30 p.m. I observe from the front porch: I hear calls-mom "erks", very loud clacks in response from the owlet, mom "erks" and moves west. Mutt calls and calls and wants food delivered. He sounds to be about 30 feet closer to the red-tails' nest. Mom calls from the pond. Mutt's not going to try that flight distance. Mom comes closer and "erks" from my TV antenna (I can see her silhouetted against the night sky). Mutt moves to the big fir. I hear the wire fence reverberate; is he okay? A quick search with the flashlight finds noone plastered in the wire. Mom circles back; is it too far for him? Calls come from the big fir, then the bay, then she's in the woods. (Five times I've thought I heard a faint distant second owlet call.) She works Mutt hard for 45 minutes, coercing him to fly and follow her to get food. All goes quiet.

5-15-02 No owls visible in the morning. Who knows where they left off last night. A neighbor, Matt, telephones because on his walk along the road he's spotted feathers: "Looks like a wing, torn off. Are your owls okay?" I stop along the road and bring back the feathers. I call Matt, saying, "Yes, it looks torn off. But that's a barn owl wing, it probably was food for my owls. (Great horned owls, weighing it at 3-4 lbs are known to eat 1 lb barn owls.) I haven't seen the one youngster for a week so you had me worried." By 6:30 p.m. I take dinner onto the back porch since I'm hearing an owl calling behind the house, whistle calls. Hmm. The older owlet last year would whistle. Hmm. Jays squawk in agitation; 50 feet to their left comes a hoot. Mom? Pop? An owl flies, big and agile all along the tree line's cover and lands. Big, tawny, whistling as older youngsters do, sitting right in the open in a fir. Could it be Jeff? Yes!!! A week since I've seen any sign of him. I stand near the old nest and listen very carefully. I can hear a "sheep" call from down the hill or across the road-it's Mutt! I drive to the corner to listen; definitely across the road. As I pull up to the neighbor's house I can see Mutt perched behind the house. Annette and I go out to look and listen. She's amazed at how big he is when I tell her he's a baby owl. And the call surprises her too; no hoots yet. I can hear both youngsters and mom "erks" too. The family is accounted for. I call Matt back to thank him for his alert observation and to let him know all is well.

5-17-02 Baby juncos are everywhere today, calling and following their parents. The "brrt" of a western tanager is a welcome note, high up in the tree tops. And the "Tail", hawk watchers' abbreviated version of red-tailed hawk, is visible on the nest. Loads of bugs are visibly swarming, but they'll be taken care of by the Hutton's, Cassin's and warbling vireos I hear. A descending "peeer" indicates a western wood pewee is out and about, another insect-eater. At dark Jeff begins whistling every 6 seconds. Mom flies up from the ground as Millie and I enter the woods. Quail scatter noisily; were they the ones being stalked? A brown creeper works the tree bark, too close for focusing in my binoculars. I hear Mutt still across the street, then Jeff whistles, and mom "erks" near Mutt.

5-20-02 Quail scurry; the male's territory must be right around the female, wherever she goes he follows her and runs after her as if he's on a tether. Two young GHOs whistle from both sides of the wooded lane. Mutt has returned!

5-22-02 7 a.m. mom sits against the tree bark-perfect camouflage. Still there at 5 p.m., hidden from jays and us. The two youngsters are in a tree crotch, in gorgeous light! One is busy eating; the other watches.

5-23-02 Three owls are heard and seen in the a.m. and p.m. A juvenile, very white, calls from a branch perch. The 2nd one sits in the crotch. Then both are side by side. A missed photo-op! One spreads its big feet, toes 2 by 2, and climbs right up a big 7 inch diameter branch at a 50 degree angle. No problem! Not to be left behind the 2nd one hops and follows. #1 flies 15 ft and #2 plays "tag, you're it". The woodlot is just a big jungle-gym. The "Tail" stands tall at the nest; is something else there?

5-24-02 Three baby birds fly across the driveway, with bluish tinge. Could these be the bluebird babes? (Blue is such an interesting feather color. There is no pigment in any blue feather; the color is structural and is visible only when the angle of interference is right.) Bryant has just asked if there's any sign of red-tail chicks. My reply, "I think so but haven't seen any yet." is out of date 5 minutes later. In the warm afternoon mom is spreading her wings as a parasol and up pops a bright, alert, white chick! In a nearby tree a young owl stands out as a tawny ball in the greenery. Which way shall I look?

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