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Shasta Bioregion Almanac

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Skywatcher's Diary

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From the Green City Calendar

January

Robins and cedar waxwings have migrated to the Bay Area in large numbers. They prefer pyracantha and toyon berries; sometimes they will eat so many berries they have difficulty flying and appear “drunk.” They are not drunk, only overloaded.

Ferns and lichen are in their prime season: the Bay Area supports two dozen indigenous fern species and countless lichen species. Mushrooms and toyon are also in their prime. Winter is a great time to savor the vibrant colors and contrasts of green mosses and brown leaf mold, as well as the dampness and smells of a rejuvenated bioregion.

Gray whales migrate south. They are visible all along Highway One but views from Point Lobos State Reserve and the lighthouse at Point Reyes are especially good. Male elephant seals will congregate at Año Nuevo State Park. Tours begin this month as females begin to pup.

Monarch butterflies continue to roost in Natural Bridges State Park in Santa Cruz. Hummingbirds, the state’s earliest nesters, are already beginning to breed in January.

February

Mourning doves will begin nesting in February, making a flimsy stick nest that will hold two eggs. The babies will leave the nest at about 12 days old and will fly a few days later.

At Morro Bay State park, great blue and black-crowned night herons are nesting, sharing eucalyptus trees with monarch butterflies, hummingbirds, and red-shoulder hawks. Watch for warblers, particularly orange-crowned warblers who are migrating through Northern California right now.

Flea populations are down but termites are on the rise. Termites are extremely important to the recycling of nutrients in nature -- they make decomposition possible! The Jerusalem cricket, a native Bay Area insect, will start coming out at night. These three inch-long insects may look fierce but are absolutely harmless -- in Mexico they are called “niñas de la tierra” or “children of the earth.”

Some bald eagles winter in California. Try the Lower Klamath national Wildlife Refuge or Cache Creek Wilderness Study Area for good viewing. Sandhill cranes will be in evidence at Pixley National Wildlife Refuge in Tulare County.

March

Spring wildflowers are blooming! Wildflowers in our region include star lilies, mission bells, brodiaea, red maids, and blue larkspur. Good viewing spots include Chimney Rock in Point Reyes National Seashore, San Bruno Mountain, Edgewood County Park, and Mt. Diablo.

Redwood wildflowers are found all along the coast from Oregon to Santa Cruz. These small flowers like the cool, wet and shady understory of the redwoods and Douglas firs. Find adder's tongue, wake robin, giant trillium, redwood sorrel, miner's lettuce and huckleberry. Search out these winter bloomers at the Armstrong Redwoods State Preserve near Guernville and Muir Woods National Monument.

Great horned owls are one of the first raptors to nest, often with babies in the nest by early March.

Black brants will be flying into Drake's Estero in Point Reyes and in late March many migrant birds begin returning to their breeding grounds.

Now is the time to explore the Strybing Arboretum in Golden Gate Park and marvel at the magnolias, gooseberries, silktassels, aloes, California currants and manzanitas.

Elephant seals can be seen birthing and weaning their young at Ano Nuevo.

April

In the undergrowth of old growth redwood trees you can't miss the blooming rhododendrons. Their colors range from white, pink, purple or red.

Most migratory songbirds that winter in the Bay Area will have begun their journeys to their nesting grounds and will be nesting by the end of the month.

Many snakes will be out and about during the first warm days of spring. You'll see a variety at Mt. Diablo and at Sugarloaf Ridge.

April 22 is Earth Day.

Wild iris blooms along open grassy slopes.

Northern Orioles are back from wintering in Central and South America.

Discover loons around the shores of Tomales Bay. Great blue herons, great egrets and double crested cormorants can be spotted as well.

Anywhere there are monkey flowers, you'll find Chalcedon checkerspot butterflies this month. Males, smaller than females, have distinguishable red spots on the tips of their wings.

The Slavs of Carinthis celebrate the day of the Green Man on April 23. There is a procession in which a tree decorated in flowers and garlands is carried along with the figure of Green George covered in birch branches. He is escorted down to the river and thrown in to ensure rain.

July

In July, young raccoons are beginning to join their mothers on nightly food foraging forays. They search for grubs and worms, ripe fruit, slugs and snails.

Female stellar sea lions mate 11-14 days after giving birth. The implantation of the fertilized egg is delayed for three to four months so births will synchronize with the return of the pregnant females to rookeries, where they can have pups safely.

Blue and Humpback whales migrate from Hawaii and Baja California to the Bering Sea, heading northward past California in early summer.

Gonyaulax, a toxic phytoplankton, blooms and is consumed by shellfish, resulting in a phenomenon known as the “red tide”. Shellfish are dangerous to collect and eat during the summer months due to this phytoplankton, so be careful.

August

This is a great time to get out to beaches to see native plants. The sand-dune communities are truly dazzling right now.

Mourning doves will lay 2 eggs in a flimsy stick nest through August. The eggs will hatch in 12 to 14 days. If a baby falls out of the nest, it is OK to place it back in the nest if it is uninjured.

Melted snowpack from the Sierra Nevada creates waterfalls in side canyons of the mountains, where tributaries of the major river systems drop over granite outcroppings as they enter river gorges. By mid to late summer, these frigid waters warm up just enough to provide the ideal respite from the summer sun.

Blackberries begin bearing fruit this month. These plants thrive where vegetation has been disturbed, including along dirt paths and roads up and down the California coast, making them easily accessible for picking.

Poison oak is bright red in late August and September. It grows in a wide variety of habitats. Watch for distinctive compound leaves with three gently lobed leaflets turning to their fall foliage colors at this time of year.

October


It is safe to begin pruning trees in October because tree-nesting animals such as squirrels and birds have completed their nesting cycle for the year.

If you have a dead tree that is not in danger of falling on something, leave it standing for wildlife to use: acorn woodpeckers drill holes in dead trees to store acorns for the winter.

In October, acorns are ripe, providing food for a myriad of wild animals: squirrels, band-tailed pigeons, black-tailed deer, and scrub jays are some of the species that feed heavily on acorns.

Fall colors proliferate in the Sierra Nevada foothills. Along Highway 49 from Grass Valley toward the Gold Country, observe the red, yellow, and orange leaves of the redbud, dogwood, and California black oak trees. At higher altitudes, maples begin to shed their leaves, and the aspen groves along the mountain passes will be showing their colors.

Migrating raptors such as ospreys, peregrine falcons, and hawks are seen at Hawk Hill in the Marin Headlands, off Conzelman Road and at Sweeney Ridge, south of San Francisco. These raptors fly over the Golden Gate and down the peninsula.

The fruit of the leafless California buckeye tree will be ripening on the branches.

The Jerusalem Cricket will be in evidence this month. The crickets live under rocks and in burrows. Though they have large jaws, they are virtually harmless unless threatened. When distrubed, the crickets make rasping sounds by rubbing their legs on their abdomen or they tap their abdomen on the ground.


November

November and December are the best months to prune trees and bushes to avoid disturbing nesting birds or squirrels: hummingbirds will begin nesting in January, squirrels in February, with everything else nesting in the spring, summer and early fall.

Migrating songbirds are returning to the Bay Area: robins, cedar waxwings, yellow-rumped warblers and gold-crowned sparrows will be seen in large numbers in our neighborhoods.

Gulls have returned to the coast from their summer nesting grounds in inland areas of the country.

California gray whales begin passing northern California on their way to Baja California. After spending the summer feeding off the Alaskan Coast, the whales begin their twelve-thousand-mile journey to the warm waters of Mexico, where they breed. Gray whales are spotted during their winter and spring migrations along the Marin Coast, at Ocean Beach and in the Monterey Bay.

SF Bay National Wildlife Refuge, near the east side of the Dumbarton Bridge in Fremont, attracts almost one million birds to its mudflats this winter. Species such as pintail ducks, mallards, egrets, herons, and endangered California clapper rails are sighted each year.

Brown pelicans head south to the breeding grounds on the Channel Islands. They will return to the Bay Area by early spring. Look for them at Sonoma Coast State Beach.

November is the prime month for mushroom hunting along the northern California coast. If you want to eat the mushrooms, consult an authority first.

December

Likely the most recognizable insects in North America, monarch butterflies migrate toward the coast. They winter along the northern and central California coast. During the day they look for nectar, and at night they roost together. These beautiful insects return to the same sites annually. View them at Natural Bridges State Beach near Santa Cruz, Sonoma, and other parks.

Migrating waterfowl will have returned to the Bay in large numbers. Surf scoters, a kind of duck, will form large rafts on the Bay. They are easy to identify: the males are black with white patches on the head and an orange bill.

The hawk population rises in the Bay Area because of the migrating hawks that will pass through or spend the winter.

Anna’s hummingbirds live in the Bay Area year round, so it is not necessary to remove hummingbird feeders for the winter. The best formula to use in feeders is 1 part white sugar to 4 parts boiled water.

Monarch butterflies winter along the northern and central California coast. During the day they look for nectar, and at night they roost together. These beautiful insects return to the same sites annually. View them at Natural Bridges State Beach near Santa Cruz, Sonoma, and other parks.

From the small goldenbacks to the large western chain fern, twelve species of fern inhabit the lush fern canyons in redwood country during the wet season. Observe them in Fern Canyon in Point Reyes or in Van Damme State Park.

Also luxuriating in the moisture, the docile banana slug comes out during the daytime in the redwood forests. Banana slugs fertilize soil and help disperse seeds and spores.






Thanks to: California Academy of Science's Naturalist's Almanac by Monica McGee, Jake Sigg of the California Native Plant Society, Susan Heckly of the Lindsay Museum and Leslie Saul of the Insect Zoo and Bob Barzan and the 1999 Earth Rites Pocket Almanac. To receive your own 1999 Earth Rites Pocket Almanac, send $1 to White Crane Press, P.O. Box 170152, SF, CA 94117.

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