[Tweeters] Barred Owl vs Spotted Owl

[ED DEAL]

Tweets,
 
I would recommend reading the monograph cited below by J. Wiens et al. that describes the rigorous science behind the proposal for Barred Owl removal. They studied the Spotted Owl populations in 3 areas, one near Cle Elum, WA and 2 in Oregon that had BDOW lethal removal and 3 paired areas that served as controls. Over several years, the Spotted Owl population stabilized in the 3 study areas while continuing in free-fall in the three controls.
Effects of Barred Owl (Strix varia) Removal on Population Demography of Northern Spotted Owls (Strix occidentalis caurina) in Washington and Oregon, 2015–18 — OFR 2019-1074 (fdlp.gov)
 
Ed Deal
Seattle
falcophile at comcast dot net
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