
30 November 2023
On occasion historical past repeats itself.
In 2013 US Fish & Natural world proposed an experiment: Kill 3,600 barred owls (Strix varia) within the Pacific Northwest to stay them clear of their shut relative, the northern noticed owl (Strix occidentalis). Barred owls had spent 100 years increasing westward to the Pacific coast the place they turned into extra a success than their habitat-constrained noticed cousins or even interbred with them. Regardless that barred owls are local to North The us and moved west on their very own, USFW dubbed them “invasive” and proposed killing them anywhere discovered close to noticed owls.
National feedback at the culling proposal have been overwhelmingly detrimental however native feedback have been in prefer. The experiment went ahead and barred owls have been killed in line with plan. The general paper describes barred owl “removing”.
Barred owls detected in remedy spaces have been got rid of the usage of 12-gauge shotguns and well-established box protocols (20, 22, 23). A complete of two,485 barred owls have been got rid of from remedy segments of 5 other find out about spaces all through the experiment (Desk 1). The imply collection of barred owls got rid of in keeping with 12 months used to be extremely variable amongst find out about spaces, starting from a low of 15.8 barred owls in keeping with 12 months in Inexperienced Diamond (GDR), to a prime of 251.5 barred owls in keeping with 12 months within the Oregon Coast Vary (COA).
— FWS.GOV Learn about Effects: Invader removing triggers aggressive unlock in a
threatened avian predator
The 5 places the place removing happened, known as “remedy” spaces, and the collection of barred owls killed are proven within the screenshot of Desk 1.

Curiously at two of the 5 find out about websites — Hoopa-Willow Creek and Inexperienced Diamond, California — the killing of 494 barred owls made little to no distinction for the noticed owls. Click on right here for the graph that presentations this.
Then again, USFW declared the experiment a luck and not too long ago drafted a brand new “Barred Owl Control” proposal to proceed killing barred owls and enlarge the challenge additional in California. The draft is recently in its 60-day public remark length: November 17, 2023 – January 16, 2024 all through which we’re unfastened to precise our opinion.
Learn in regards to the proposal and obtain related paperwork at Fish and Natural world Carrier seeks public touch upon draft option to organize invasive barred owls. Click on right here to put up a remark on-line or paper-mail your feedback to the cope with underneath. The remark length ends on 16 Jan 2024.
Public Feedback Processing; Attn: Docket No. FWS-R1-ES-2022-0074 U.S. Fish and Natural world Carrier Headquarters, MS: PRB/3W 5275 Leesburg Pike Falls Church, VA 22041–380
p.s. Right here’s what I considered this concept 10 years in the past. I haven’t modified my thoughts.