What Moves Through Humboldt County in November

November in Humboldt County is the month when several large wildlife movements occupy the same calendar without coordinating with each other. The first Pacific fronts arrive from the Gulf of Alaska, the rivers darken and rise, and species that have been in summer and autumn holding positions begin to move. Gray whales depart their Arctic feeding grounds and turn south past Trinidad Head. Coho salmon, waiting since summer for the small coastal creeks to rise, enter the redwood streams at their seasonal peak. Tundra swans appear on the flooded pastures of Ferndale Flats. The candy cap mushroom begins its long season in the Douglas fir duff. The Leonids arrive overhead in the second week of the month, as is their custom.

These events are independent of each other and happen to share a timezone. November in Humboldt County is not a programmed sequence but a convergence of biological calendars, each running on its own evolutionary schedule, that the observer finds in the same window by arriving in November. The tourist calendar was not consulted.

What follows is a phenological guide to November — timing, locations, and the particular details that the general guides tend to omit. A companion guide covers May's convergence, when the same county hosts northbound gray whales, spring Chinook, velvet-antlered elk, and the Eta Aquariids.

The Pacific gray whale's southbound migration is the return leg of the longest mammal migration on Earth — roughly 10,000 miles from the Chukchi and Bering seas to the warm-water calving lagoons of Baja California (Guerrero Negro, Magdalena Bay, San Ignacio Lagoon), and 10,000 miles back. The Eastern North Pacific population numbers approximately 14,500 to 19,000 animals (NOAA Fisheries, 2024), and the great majority depart their Arctic feeding grounds in late October and early November, moving through Pacific Coast offshore waters in a southbound stream that persists through February.

November marks the onset of the southbound passage off the Humboldt coast. The first animals to move are typically adult females without calves, which travel faster and somewhat farther offshore than the cow-calf pairs that constitute the more visible component of the spring northbound migration. Southbound migrants also tend to travel at greater distance from shore — a pattern attributed partly to the deeper water of the outer continental shelf and partly to their traveling momentum, as individuals making the journey in nutritional condition are not inclined to linger in the nearshore kelp beds. Nonetheless, Trinidad Head and Cape Mendocino both produce reliable southbound sightings on calm November mornings.

From Trinidad Head (368 feet, the highest coastal promontory north of Cape Mendocino), Lady Humboldt recommends arriving before 9 a.m., when northwest wind chop has not yet developed on the outer water. A gray whale's columnar exhalation reaches 10 to 15 feet and is visible at up to a mile on flat water. The southbound corridor runs roughly two to four miles offshore — farther than the spring corridor, but within range of 8-power binoculars on a calm day. Patrick's Point State Park offers additional elevated viewing from Wedding Rock and Rocky Point.

The natural history of the migration itself — why gray whales make this journey, how they navigate, and what the Baja lagoons represent for the population — is covered in the gray whale migration natural history guide. Shore-based viewing logistics for both the southbound and northbound windows appear in the whale watching guide.

Coho salmon (Oncorhynchus kisutch) time their return to freshwater differently from Chinook: where Chinook begin entering the Klamath and Trinity river systems in late summer, coho wait for the small coastal creeks to rise. The first significant rainfall of November — typically the second or third week of the month — sends coho into Humboldt County's redwood-shaded creeks in numbers that the summer streambed gives no indication of.

The Southern Oregon/Northern California Coast coho is listed as threatened under the federal Endangered Species Act (National Marine Fisheries Service, 1997), a status that reflects decades of habitat degradation from road erosion and stream sedimentation following timber harvesting. Recovery work across the county — large wood placement, culvert removal, watershed road maintenance — has produced measurable improvement in several streams. Prairie Creek, within Prairie Creek Redwoods State Park, supports one of the healthier wild coho populations in the county, with annual spawning surveys conducted by California State Parks and the Redwood Parks Association.

November coho are at their physical peak before the physiological costs of spawning accumulate. Males develop the characteristic hooked jaw (kype) and crimson flanks against a green dorsal surface — a coloration that serves territory marking and mate attraction in the spawning gravel (redd). Fish of seven to twelve pounds are typical; individuals to eighteen pounds have been documented in the Trinity drainage. Spawning pairs are observable from streamside in Prairie Creek near Gold Bluffs Beach, in Redwood Creek near the Tall Trees trailhead, and from the bridge at Orick on U.S. 101 when water clarity permits.

The ecological accounting of a coho run extends beyond the fish themselves. Studies in Pacific Northwest streams have documented that riparian tree growth within 10 to 50 meters of productive salmon streams can exceed growth near non-salmon streams by 15 to 20 percent, a consequence of the marine-derived nitrogen delivered by spawned-out carcasses to the streamside forest (Helfield & Naiman, 2001). The same old-growth redwoods and alders that shade the stream are, in this respect, downstream beneficiaries of the ocean. The natural history of coho in Humboldt County's redwood streams is covered in a companion piece.

The Roosevelt elk rut ends, as these things do, with a kind of institutional exhaustion. The bulls that spent September and October bugling, sparring, and maintaining harems in the meadows of Prairie Creek emerge from the rut season in a substantially depleted state — reduced in body weight by 20 percent or more in active competitors. By early November, the rut has concluded, the cows have dispersed from their rutting-season groupings, and the bulls have entered a nutritional recovery phase that occupies them through December.

November elk at Prairie Creek appear in configurations distinct from both the rut-season assemblages of October and the velvet-antlered spring herds. Adult bulls — their antlers now hardened and polished after the velvet shed of August and September, carrying the full rack they will wear until March — can often be found grazing alone or in small bachelor groups in the bottomland meadows adjacent to the Gold Bluffs Beach camping area. The bulls are not, in November, interested in displaying; they are grazing with a focused intensity that suggests they understand the balance sheet of the last several weeks.

Cows with calves of the year — the calves born in June now approaching their first winter at roughly four to five months of age — form loose nursery bands in the forest margins and open meadow edges along Davison Road. The calves, which spent summer growing from 25 to 150 pounds approximately, have lost their spotted coats and now resemble small cows. The Prairie Creek Redwoods herd numbers approximately 150 individuals (California State Parks, 2025).

Lady Humboldt has observed that November offers, for the observer who finds the September elk-rut gatherings at the Elk Prairie meadow somewhat crowded, a quieter window for watching elk at close range from a vehicle on Davison Road, which the elk have regarded for some years as a fixed feature of their landscape and have ceased to find remarkable.

The tundra swan (Cygnus columbianus) breeds on the arctic coastal tundra of Alaska and Canada and winters along the Pacific coast from Washington state to Central California. The Pacific Flyway population numbers approximately 80,000 birds (U.S. Fish & Wildlife Service, 2023). A portion of this population stages or winters in Humboldt County, using the flooded agricultural fields and tidal marsh margins of the Ferndale Flats (Eel River Wildlife Area, managed by CDFW) and the southern Humboldt Bay margin.

Tundra swans typically arrive at Humboldt County locations in mid-November, following the first significant atmospheric river event of the season, which floods the Ferndale bottomland pastures to a depth that suits the swans' tipping-and-straining feeding style. Concentrations of one to several hundred birds have been documented at Ferndale Flats in productive years; the sight of large white birds spread across a flooded dairy pasture beneath a low November sky is, in Lady Humboldt's view, one of the county's more photogenic natural arrangements. Access is from the Cock Robin Island Road or the Eel River Wildlife Area levee off Cannibal Road east of Ferndale.

At Humboldt Bay National Wildlife Refuge, the waterfowl community transitions in November from the October peak of Aleutian cackling geese — which are now dispersing south after their 40,000-bird staging — toward a wintering assemblage of greater white-fronted geese, northern pintail, American wigeon, greater and lesser scaup, bufflehead, and canvasback. The Hookton Slough unit and the adjacent mudflats at the Humboldt Bay Aquatic Park remain accessible year-round for observing this waterfowl turnover at close range.

November opens the candy cap mushroom's season, an event that most of the other autumn fungi have been building toward by way of exit. The candy cap (Lactarius rubidus and the smaller Lactarius fragilis) fruits in Douglas fir and mixed conifer forests of the North Coast fog belt from November through February, producing its characteristic maple-syrup aroma only after the mushroom has been dried — through the action of sotolon, a compound also found in maple syrup and aged fenugreek, which the drying process liberates from otherwise unremarkable precursors.

Fresh candy caps smell of lactarius — the mild sour-mushroom quality shared by the milk-cap genus — and might be passed over by a forager who does not know to look for small reddish caps in the duff beneath second-growth Douglas fir. Dried, they become unmistakably themselves. This delay between harvest and character is unusual in the mushroom world and explains the candy cap's reputation among foragers who have learned to trust the drying room.

The hedgehog mushroom (Hydnum repandum agg.) continues fruiting through November, its distinctive tooth-covered undersurface — in place of gills or pores, minute spines hang from the cap's lower surface — making it the one large edible species without a toxic look-alike in the region. Where October belonged to king porcini, matsutake, and lobster mushrooms, November belongs increasingly to candy caps and hedgehogs.

The full scope of the fall mushroom season — matsutake, porcini, hedgehog, lobster, and candy cap in their respective timing and habitat — is covered in the fall fungi companion guide.

November's astronomical calendar carries two meteor showers of different character. The Taurid meteors — originating from debris shed by Comet 2P/Encke — arrive in two branches: the South Taurids peak around November 5, the North Taurids around November 11–12. The combined rate from a dark site reaches five to ten meteors per hour at peak, a modest quantity offset by the showers' reputation for slow, bright fireballs. Taurid meteors enter the atmosphere at roughly 65,000 miles per hour — slower than most meteor streams — which allows them to penetrate deep into the upper atmosphere before ablating, producing long, luminous tracks that frequently leave visible trains. A good Taurid fireball, crossing the southern sky from Scorpius toward Orion, will stop a conversation when it crosses the treeline.

The Leonid meteor shower peaks around November 17–18, with its radiant in Leo, which rises in the northeast around midnight. Under typical conditions the Leonids produce fifteen to twenty meteors per hour from a dark site. In years when Earth passes through a dense debris filament left by Comet 55P/Tempel-Tuttle, the Leonids can produce storms — the 1966 storm peaked at an estimated 150,000 meteors per hour over the American Southwest; the 2001–2002 storms produced 1,500–3,000 per hour over the Pacific. The 2026 Leonids are not forecast to storm, but the peak nights remain worth visiting any dark field outside the county's light domes.

November's maritime weather introduces an additional variable: Pacific fronts pass through on three-to-four-day cycles, and the clearest nights typically follow a system's departure by twelve to twenty-four hours before the marine layer reforms. The viewing window is specific and tends to reward those who have already identified a site. Humboldt County's dark sky options — the King Range interior, the Avenue of the Giants meadow clearings, Humboldt Lagoons State Park — are detailed in the stargazing guide.

Lady Humboldt's weekly field guide arrives Tuesday mornings with notes from the same correspondent who walks these trails and watches these skies. A subscription is here.

The table below summarizes the primary November wildlife and natural phenomena referenced above, with approximate peak timing and primary observation locations.

Phenomenon	Peak Window	Primary Location	Notes
Gray whale southbound migration	Early Nov–Jan	Trinidad Head, Cape Mendocino	Main pulse 2–4 miles offshore; mornings best
Coho salmon spawning run	Nov–Dec peak	Prairie Creek, Redwood Creek, Orick bridge	ESA-threatened; enters streams after first rainfall rise
Roosevelt elk (post-rut)	Nov–Dec	Gold Bluffs Beach, Elk Prairie meadow	Bachelor bull groups; nursery cow-calf bands
Tundra swans arrive	Mid-Nov	Ferndale Flats, S. Humboldt Bay margin	Follows first atmospheric river flooding floodplain
Aleutian cackling geese	Oct peak, dispersing Nov	HBNWR Hookton Slough	40,000+ at October peak; southward dispersal underway
Candy cap mushrooms begin	Nov–Feb	Fog-belt Douglas fir forests	Dry before using; maple-syrup aroma develops in drying
South and North Taurid meteors	Nov 5–12	Any dark inland site	5–10/hr; notable for slow, bright fireballs
Leonid meteor shower	Nov 17–18 peak	King Range, Avenue of the Giants	15–20/hr typical; radiant rises midnight in Leo