Showing posts with label nature. Show all posts
Showing posts with label nature. Show all posts

2/24/2020

Kenneth Denman Wildlife Area: A Southern Oregon birding gem

This 1,858-acre wildlife area is located about five miles north of Medford in Jackson County, southern Oregon. The area is bordered by the Rogue River and offers an impressive variety of habitats for birds including oak woodlands, grasslands, ceanothus shrublands, riparian habitat, and intact vernal pools, which are all considered to be at-risk habitat. The area is located within the  former Camp White U.S. Army Cantonment, which was deactivated in 1946 after the end of World War II. In 1954, the area was conveyed to the Oregon Game Commission and the wildlife area was established. Several ammunition bunkers are still in place.


While the major function of the wildlife area’s management is to provide waterfowl, upland bird
and deer hunting opportunities, it is also a very accessible area to consider if you are looking to do some bird watching in southern Oregon not far off the beaten path. Be aware that a $10 parking permit is required. There is an 0.7-mile interpretive trail in the southwestern region of the Little Butte Creek Unit of the wildlife area with many opportunities for bird watching. The interpretive trail is on the south side of Touvelle Road. Another trail on the north side of the road will lead you to the former Camp White ammunition bunkers.

Map showing approximate bunker locations. Original USFWS map can be found here
We visited the area in late February, which is a bit early for migrating birds. Based on our anecdotal observations, the Acorn woodpeckers and common merganser ducks were most abundant during our visit. I was able to find a bird species list for nearby Agate Lake, which is another popular birding spot 11 miles east of the Denman Wildlife Area.

Checklist of Birds found at Agate Lake (Adapted by Otis D. Swisher from Janes et al., 1996) 
(R) Year long resident; (S) Summer visitor; (W) Winter; (P) Passing through on migration; co =  Most likely seen on coast; la = Most likely seen in lake basins of Klamath and Lake Counties; mo = Most likely seen in mountains

Panoramic view of Table Rock and wetlands
There was plenty of evidence in dead snags that the acorn woodpeckers (Melanerpes formicivorus) use the area heavily.


This wildlife management area contains the largest known area of vernal pool areas in the Rogue Valley (ODFW Vernal Pool Fairy Shrimp Survey 1999). I really wish that the interpretive trail and vernal pools were better marked with more detailed information on their importance and the conservation status of associated species. According to EPA, the unique environment of vernal pools provides habitat for numerous rare plants and animals that need them to survive. Many plants and animals spend the dry season as seeds, eggs, or cysts, and then grow and reproduce when the ponds are again filled with water. In addition, birds such as egrets, ducks, and hawks use vernal pools as a seasonal source of food and water. A 2007 paper from the Agate Desert Technical Advisory Committee describes the importance. The vernal pool ecosystem is valued for its role in supporting biological diversity of unique plant and animal assemblages, including federally listed species.

The Hall Tract is another part of the wildlife area to the south of Antelope Road. Most of the irrigated farm land found on the wildlife area is located on this tract. The land is flood irrigated through a system of reservoirs and ditches. Public areas consists mainly of a large fishing pond. To my knowledge, there are no access trails for bird watching.

We will definitely return to this site during the peak migration and update this post on the outcome.

9/21/2013

Fitton Green Natural Area

There is a newer natural area just west of Corvallis called Fitton Green Natural Area. Benton County acquired the 308 acre area with funding from Elise Fitton Ross, her husband Charles Ross and the Greenbelt Land Trust. It was opened in 2003. The park has a trail system most of which was converted from old logging roads.


The Natural Area, along with Beazell Memorial Forest, contains 75 percent of the Taylor's Checkerspot butterfly population. Because current evidence suggests that Taylor's Checkerspot will become extinct in the forseeable future, it has been proposed for listing under the Endangered Species Act. I was lucky to see one basking in the sun during a trip in April. There are only 14 known populations in Washington and Oregon according to the Xerces Society.


There have been recent efforts to improve butterfly habitat at the preserve through prescribed burns. Following the burns, the area will be seeded for nectar plants. The hope is to improve habitat for Taylor's Checkerspot and Fender's Blue, another endangered species making a comeback after being added to the federal Endangered Species List in 2000.


The trails offer a very easy hike with beautiful views just 4 miles west of Corvallis. The Benton County website provides an online map. At higher elevations (1,200 ft.) there are views of Marys Peak and the Marys River Valley, Cardwell Hills Valley, the Willamette Valley, and the Cascade Mountains.



9/06/2012

Browder Ridge Trail: Willamette National Forest, Oregon

Browder Ridge Trail (#3409) is in the Willamette National Forest (Oregon) off Highway 20 in the Tombstone Pass Trail Area. This hike takes you along a mountain ridge with incredible views of the Three Sisters and Diamond Peak from open meadows teeming with wildflowers and butterflies. We camped nearby in September near a creek flowing just enough to provide water for the dogs and a gentle babbling rhythm to sleep by. The next morning we drove to the Trailhead, which we found by heading south from Highway 20 on National Forest Road 15.



























The hike from this starting point is moderately difficult. It begins in old growth forest through a stand of impressive, old, moss covered firs. Along the ridge, the forest opens up several times into beautiful fern meadows with abundant wildflowers and butterflies. 


Asters, Red Columbines, and Pearly Everlasting were blooming everywhere and we saw many species of butterflies including lilac-bordered coppers, pine whites, and various fritillaries, blues, parnasssians, and skippers.


The views from these meadows are vast. The Three Sisters are in full view. They are the 3rd, 4th, and 5th highest peaks in Oregon. We decided to head north off the main trail towards Heart Lake. This made for a really long hike. If you decide to start from the National Forest Road 15 Trailhead, make sure you take plenty of water and a lunch because you will need it. We are brisk walkers and it took us about 4.5 hours to reach Heart Lake from the NFR 15 Trailhead.


It is possible to fish from Heart Lake and the dogs enjoyed a quick swim before we started heading back. The hike back took about 3 to 3.5 hours.