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Riparian Restoration is for the Birds| Project 1 of 30

By Lucy DeGrace

Beginning in about 2006, SFEG’s habitat restoration at Howard Miller Steelhead Park has consisted of stream channel restoration, installation of two footbridges, eradication of invasive plants, and thousands of native plants planted with the help of hundreds of volunteers.  Wandering clockwise along the loop trail (the Wetland Wildlife Trail on the park map) on a recent sunny dawn, chickadees and spotted towhees could be seen and heard busily chattering in the dense thicket of native shrubs along the Skagit River. 

Spotted towhee

Both species find insects, seeds, and berries to eat in the dense riparian corridor, and find sufficient cover from predators here.  Toward the west end of the loop trail, a sign created in 2007 draws attention to the resident bald eagles that nest nearby, and the populations that swell this time of year in response to abundant spawned-out salmon.

This day one eagle was heard, but none were seen. This late in the spawning season most eagles have by now moved downriver to the Skagit delta or Samish flats, dining on migratory waterfowl these days. 

As the meadow trails converge at a footbridge on the west end of the park, the trail moves through completely different habitat.  A footbridge built by SFEG field staff crosses a side channel which provides critical habitat for rearing juvenile salmonids including steelhead trout. 

Footbridge and side channel sign

Many people might not see this habitat as their classical idea of a salmon stream, but these calm waters provide refuge from floods, predators, and warm summer temperatures. As you can imagine, these waters are home to many birds a well. Nesting boxes for wood ducks were installed here as part of the restoration project.  Normally nesting in tree cavities, wood ducks will use nest boxes places in suitable locations if no natural cavities are available.  The nest boxes have been used every year for the past several years.  As the trail circles back toward the east, its location atop an old railway path (Skagit-Sauk Reach Trail on the park map) provides intermittent views of the side channel running parallel below. 

View of the side channel from the trail

On this walk, I saw no wood ducks, but I saw several scaup plying the waters of the side channel, diving for aquatic invertebrates and plants. 

Scaup (male)

Some of these invertebrates are also the food favored by juvenile salmonids. Across the trail the steep slope is dense with sword fern and mossy, lichen-draped mature evergreens.  

As the trail nears the park’s utility shed and the campground, there are places to reunite with the meadow trails, where this morning song sparrows were announcing their presence. These vocally gifted little guys find great cover in the understory and ample source of insects and seeds to feed on.  The raucous call of the Steller’s jay drew my attention to a party going on down the trail. The jay mingled with varied thrush and more spotted towhees and American robins in a gregarious party in and below an ancient apple tree.  As I approached to try and identify the fruit and the tree, I noticed hundreds, maybe thousands of small holes drilled into the tree trunk, as if by a drill and a steady hand.  No, these were the work of a sapsucker.  Maybe red-breasted, but no one came forward to take credit.  

The Party Tree

Thus concluded my early morning bird walk at Howard Miller. Between these birds, the bats who may (or may not) use the roost boxes we installed, the beaver evidenced along the riverbank, and the cougar that was recently sighted there, it’s apparent that riparian habitat is for everyone!

For more information about this park, and to download a trail map:

https://www.skagitcounty.net/Departments/ParksAndRecreation/parks/howardmiller.htm

Spawner Survey Shenanigans

by Maddie Hicks

Starting in late October, my spawner survey partner, Eric, and I began our weekly voyage up Ennis and Upper Brickyard Creeks in search of returning adult salmon.  Equipped with our surveying gear and our gloves and socks stuffed with hand warmers, we traversed over log jams and through thickets of blackberry for about a mile of cumulative stream channel.  For the first several weeks of the season, the streams were desolate and even dry in places.  Despite a dismal start, we were welcomed on our fourth survey by over a hundred of the most brilliantly red coho that had been patiently waiting downstream in the Samish River.  We were off to the races!

As we walked upstream for each survey thereafter, we recorded the numbers of live fish, carcasses, and redds (gravel nests that salmon dig to deposit their fertilized eggs) we found.  Not only are these surveys a day well spent getting to hang out with, what in my opinion are the coolest animals ever; the data we collect is also extremely important for salmon recovery.  At the end of the spawner season, we send our numbers to the Washington Department of Fish and Wildlife where they are used to make escapement (i.e. spawner abundance) estimates.  These estimates, in turn, are used to monitor population trends and ultimately guide restoration efforts.

During the final weeks of the survey season, we decided to hike past the upstream extent of our reach on Ennis Creek to a waterfall that we’d been told about.  As we admired the waterfall, sweaty and exhausted with twigs and plant pieces sticking out of our clothes, I couldn’t help but think about the amazing resiliency of salmon.  We had only retraced the smallest fraction of the entire journey that a salmon travels in its lifetime.  Salmon are anadromous, meaning that they are born in their natal freshwater streams and migrate out to the ocean, sometimes even thousands of miles north to the Gulf of Alaska, just to swim all the way back to where they started.  Not to mention faced with a slew of natural and anthropogenic obstacles along the way like predators, lack of suitable habitat, and passage barriers. 

Rifling through the pages of my stinky, scale-covered field notebook, we counted a total of 298 fish in Ennis and 17 in Upper Brickyard this season (as well as some bonus findings like pumpkins, a basketball, a foldable chair, and a charcoal barbeque).  Numbers are up from last year for the two reaches that we surveyed, but in past years counts have been in the thousands.  We have a long way to go but we’re making improvements with every restoration project that we and other organizations throughout the watershed implement.  Until next year, spawners!

Salmon restoration and the recovery of the Southern Residents

orcinus_orca-ferop_4

Killer whales (Orcinus orca) are the largest members of the oceanic dolphin family and can be found in waters across the globe. They are incredibly social animals, travelling, hunting and playing in groups known as pods. Often times these pods are family-based, where the mother leads her offspring and their young, sharing hunting techniques and specific vocalizations.

When it comes to feeding, killer whales as a species are generalists, eating anything from fish to pinnipeds (seals) to other cetaceans (whales). Depending on the geographical location of certain populations of these whales we tend to see specialization in their diets. Known as “ecotypes,” some killer whale populations specialize in marine mammals, some on sharks, and most commonly in our area, salmon.

Killer whales are an iconic species in Washington State. Three pods known as the Southern Residents frequent the Puget Sound and people from around the world travel to the area to catch a glimpse of these whales from land and at sea. These Southern Resident whales however are listed as endangered under the Endangered Species Act. They face many threats daily from polluted waters, boating traffic and a diminishing food supply. The majority of the Southern Residents’ diet consists of salmon, with Chinook salmon being the primary choice due to them being large fish with a high lipid (fat) content and can be found in Puget Sound year-round. These salmon however are also listed under the Endangered Species Act, making their availability a limiting factor in the recovery of the Southern Resident killer whales.

Young orca feeding on salmon ( (c) NOAA, Lynne Barre)

Young orca feeding on salmon
( (c) NOAA, Lynne Barre)

Southern Resident killer whales travel between British Columbia and California each year, spending the summer months feeding on salmon in Puget Sound. Chinook salmon make up about 70% of the Southern Residents’ salmonid diet and of that 70%, approximately 3-7% originates from the Skagit River.

The Skagit River is the largest river system that flows into the Puget Sound, stretching 150 miles and draining 1.7 million acres in British Columbia and Washington State. The Skagit is the only large river system in Washington that contains healthy populations of all five native salmon species and two species of trout. Restoring habitat and flow conditions within the Skagit watershed is important for increasing wild fish stocks critical to the recovery of Puget Sound’s endangered whale population.

Skagit Fisheries Enhancement Group works to improve and restore habitat to support salmon populations. By helping to restore salmon populations, we also help restore killer whale populations. Help us help them by getting involved!

 

By WSC Education Associate KayLani Siplin

 

 

Sources:

Click to access preyselectionFord.pdf

Click to access preystudy2010.pdf

Click to access Biol.%20Lett.-2010-Ford-139-42.pdf

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