Date: 11/10/26 1:49 pm From: Michael Price via Tweeters <tweeters...> Subject: Re: [Tweeters] Vermilion Flycatcher in Snohomish County
Hi tweets
One possible survival strategy for overwintering insectivores is to find north-south ravines on south-facing slopes. These ravines often offer much warmer microclimates crowded with small flying insects even during incursions of very cold Arctic air when ambient air temp is typical of January, but within these sun-trap ravines, the microclimate from later morning to late afternoon can be more like April.
This suggestion is based on the experience offered by Vancouver BC's Anna's Hummingbird which, until its recent population break-out into civic ubiquity, could be found regularly *only* in or near parts of Metro Van with such south-facing mountain- or hillside defiles.
best wishes, m
Michael Price Vancouver BC Canada <loblollyboy...>
