<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Thanks for the interesting information, Steve. Just to show why large datasets are important, this is the first winter in years when we HAVEN’T had Yellow-rumped Warblers in our yard in Seattle. We have had up to 8 birds one year, 6 another, and usually no more than 2-4, often both subspecies. We also have 1-2 Townsend’s Warblers every winter but only a few sightings of Orange-crowned in winter. I think they remain for the winter only because of our feeders with suet and bark butter.<div class=""><br class=""></div><div class="">We saw a Hermit Thrush one day in one winter but never Cedar Waxwing or Lincoln’s or White-crowned Sparrow in winter. Our wooded yard is probably inappropriate habitat for some of these species in winter, although we have seen them all in migration.<div class=""><br class=""></div><div class="">Dennis Paulson</div><div class="">Seattle<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 16, 2022, at 12:10 PM, Steve Hampton <<a href="mailto:stevechampton@gmail.com" class="">stevechampton@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-size:large;color:#073763">With the Christmas Bird Counts coming up, I want to share some recent analysis I did for six species that are at the northern edge of their wintering range in the PNW. Research suggests many species (especially non-migratory species and short-distance migrants) are shifting their ranges north, both in summer and winter. CBCs, with their long history, are great at tracking large scale distribution changes over time, something that eBird just can't do yet. A lot of publications are now using CBC data to track climate change issues. </div><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class="gmail_default" style="font-size:large;color:#073763">I looked at <b class="">Cedar Waxwing, Hermit Thrush, White-crowned Sparrow, Lincoln's Sparrow, Orange-crowned Warbler, and Yellow-rumped Warbler</b>. I found all were increasing, to some degree or another, on CBCs in the PNW. </div><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class="gmail_default" style="font-size:large;color:#073763">The details and graphs are here:</div><b class=""><font size="4" class=""><a href="https://thecottonwoodpost.net/2022/10/07/heading-south-for-winter-more-birds-are-choosing-the-pacific-northwest/" class="">Heading south for winter, more birds are choosing the Pacific Northwest</a></font></b><div class=""><font size="4" class=""><b class=""><br class=""></b></font></div><div class=""><font size="4" class=""><span class="gmail_default" style="font-size:large;color:rgb(7,55,99)">----</span><br class=""></font><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class="gmail_default" style="font-size:large;color:#073763">Previously, I've posted about the expansion of <a href="https://thecottonwoodpost.net/2021/10/28/mapping-the-expansion-of-the-california-scrub-jay-into-the-pacific-northwest/" class="">California Scrub-Jays</a> and <a href="https://thecottonwoodpost.net/2021/03/15/the-song-of-the-lesser-goldfinch-another-harbinger-of-a-warming-climate/" class="">Lesser Goldfinches</a>, as well as a number of non-migratory species (Anna's Hummingbird, Black Phoebe, others) <b style="color:rgb(34,34,34)" class=""><a href="https://thecottonwoodpost.net/2020/03/09/the-invasion-of-the-pacific-northwest-californias-birds-expand-north-with-warmer-winters/" class="">The invasion of the Pacific Northwest: California’s birds expand north with warmer winters</a></b></div><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class="gmail_default" style="font-size:large;color:#073763">Our CBC data is being used! </div><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class="gmail_default" style="font-size:large;color:#073763">good birding, </div><div class="gmail_default" style="font-size:large;color:#073763"><br class=""></div><div class=""><br class=""></div>-- <br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div class=""><font size="4" color="#073763" class=""><span class=""></span>Steve Hampton<span class=""></span></font></div><div class="">Port Townsend, WA (<span style="font-family: verdana, arial, sans-serif; font-size: 13px;" class="">qatáy</span>)</div></div><br class=""><div class=""><font color="#073763" class=""><i class=""><br class=""></i></font></div></div></div></div></div>
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