Rob,
The sulphur does look like an orange suphur. The double spot on the
under hind wing and the orange flush on the upper hind wing are
diagnostic. As of 1996, there were no records for Island County, but
it's not a surprise to find it there.

I can't identify the skipper for sure, but it is probably the woodland
skipper (Ochlodes sylvanoides) This is the most common late summer
skipper on our side of the mountains. Meske's skipper is a SE US spp.
It's very unlikely to be mardon. Mardon is state endangered and a
federal candidate for listing. It's not known from north of south Puget
Sound, and in this region, flies in May and June.

CA tortoiseshell's are long distance fliers and experience big
population booms and busts. There have been quite a few around this
year, so there may be a big outbreak next year.

If you're looking for a good butterfly book for WA, try Bob Pyle's
Butterflies of Cascadia. It includes good information on
identifiaction, range, ecology, and behavior.

Date: Thu, 23 Aug 2007 13:59:00 -0700
From: "Robert Cash" <cash at whidbey.net>
Subject: [Tweeters] English Boom 8/22/07
To: "tweeters" <tweeters at u.washington.edu>
Message-ID: <000901c7e5c8$723e3d90$0400a8c0 at mainmain>
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reply-type=original

At English Boom on the north end of Camano Island, 8/22/07:

two Spotted Sandpipers (also saw one at Iverson Spit the day before)
at least 5 Purple Martins with two nest boxes actively feeding (at one a
butterfly still beating its wings) an Osprey flying with nest building
material (big stick)
2 Belted Kingfishers

For butterfly enthusiasts see ww2.whidbey.com/cash
Orange Sulpher?
Skipper, but what kind? Meske's, Mardon?
A Califonia Tortoiseshell, very beat up, interstingly it appeared to fly
in from the bay as though it had crossed.
A White to fluttery and distant to ID

Rob Cash
Camano Island