>From the School of Aquatic and Fisheries Sciences at the University of Washington:

"
I sent the pictures around to our department and got several
responses. The most common response was caddisfly larva, followed by
vegetation, followed by grasshopper, followed by the extruded guts of
the fish (with one person commenting that they thought it was definitely
not the guts). I would agree that it is not the guts and would
speculate that either caddisfly larva or some mix of vegetation is it.
Not sure that helps much. The fish is likely a chinook salmon.
"

--
Robert C. Faucett
Collections Manager
Ornithology
Burke Museum
Box 353010
University of Washington
Seattle, WA 98195-3010
Office: 206-543-1668
Cell: 206-619-5569
Fax: 206-685-3039
rfaucett at uw.edu
www.washington.edu/burkemuseum
http://www.washington.edu/burkemuseum/collections/ornithology/index.php
http://www.washington.edu/burkemuseum/collections/genetic/index.php


From: Bill Anderson <billandersonbic at yahoo.com<mailto:billandersonbic at yahoo.com>>
Reply-To: Bill Anderson <billandersonbic at yahoo.com<mailto:billandersonbic at yahoo.com>>
Date: Saturday, April 21, 2012 11:38 PM
To: Kelly McAllister <mcallisters4 at comcast.net<mailto:mcallisters4 at comcast.net>>, "tweeters at u.washington.edu<mailto:tweeters at u.washington.edu>" <tweeters at u.washington.edu<mailto:tweeters at u.washington.edu>>
Subject: [Tweeters] Re: Larva unknown can anyone tell me what it is with American Dipper

Is it a fishing lure?

Bill Anderson; Edmonds, WA. USA