Flap: Snohomish, Washington, Jun 2009 – Jan 2010
4 reports · 4 separate documents
Other / Unknown (3), Bigfoot (1).
In the 10 years either side we have 24 other reports within 37 miles of here.
The reports, in order
- Jun 13, 2009 Witness reports hearing Sasquatch screams echoing from the north of town while in their home.
Bigfoot · Snohomish, Washington - Jul 24, 2009 Witness reports hearing an unfamiliar sound near North Bend that they initially thought were coyotes but later identified as similar to the Estacada call.
Other / Unknown · North Bend, Washington - Sep 30, 2009 Witness reports hearing three short whooping sounds from the woods north of their yard that resembled a howler monkey.
Other / Unknown · Echo Lake, Washington - Jan 3, 2010 Witness reports hearing a 'whooping' sound described as more like a monkey than a bird at about 4am near Poulsbo.
Other / Unknown · Poulsbo, Washington
Sources: oregonbigfoot (4).
How we find flaps
- Plain rules, no model: reports within 37 miles and about four months of each other are grouped, and a group counts only when it is at least 5 times what that place usually sees over the 10 years either side.
- A flap needs at least 3 reports from at least 3 separate documents: one article listing six sightings is one telling.
- Copies are not confirmations: a story reprinted in thirty papers counts once.
- Investigator logs (BFRO, NAWAC, the Loch Ness Register) are left out, because a busy field season looks just like a flap.
- Only reports placed to a town or county and dated to the month are used. A flap is a burst of reports, not proof of a creature: panics, hoaxes and newspaper fashions make flaps too.