[Tweeters] Anna's Quick Facts

[Wilson Cady]

An overlooked migration route to the eastside of the Cascades isn't over the mountains, it is through the mountains going up the near sea level passage through the Columbia River Gorge. It is the only passage like this through the mountains south of the Fraser River in Canada. From a thousand feet a bird over the Columbia River in Clark County can see the grasslands in Klickitat County. This is why we have nesting Yellow-headed Blackbirds in Clark County and why the less than 2,000-acre Steigerwald Lake NWR at the mouth of the Gorge has such an impressive checklist with many species of east of the Cascades birds on it. We live at the 1,000' elevation on the Clark/Skamania County border and have to drive downhill to get to eastern Washington.     Wilson Cady
Columbia River Gorge, WA

---------- Original Message ----------
From: David Hutchinson <florafaunabooks at hotmail.com>
To: Scott Downes <downess at charter.net>,        "tweeters at u.washington.edu" <tweeters at u.washington.edu>
Subject: Re: [Tweeters] Anna's Quick Facts
Date: Sat, 18 Jun 2022 01:19:34 +0000


Thanks Scott, that is very interesting. Do we know possible migration routes i.e. do birdsbreed East of the mtns and winter in the Western Lowlands. via I 5 corridor? I have read thatAnnas are spreading Eastwards across the US southern states, becoming resident there. Perhapsalso in the middle states. Likely some Rufous too. Presumably this is all relative to presenceof feeders. Most of what I have observed is within Discovery Park/Magnolia, the epitome of agarden suburb. David  From: Scott Downes <downess at charter.net>
 Sent: Friday, June 17, 2022 5:41 PM
 To: David Hutchinson <florafaunabooks at hotmail.com>
 Cc: tweeters at u.washington.edu <tweeters at u.washington.edu>
 Subject: Re: [Tweeters] Anna's Quick Facts David,They are both resident and migrant (at least local) in Washington. Before they were resident in areas like Yakima, they were migrating over the Cascades in late summer (and still do). 
 
Scott DownesDowness at charter.netYakima Wa
On Jun 17, 2022, at 5:07 PM, David Hutchinson <florafaunabooks at hotmail.com> wrote:They are RESIDENT not MIGRANT. Females lay two EGGSThey are POLYGYNOUS i.e. not pair forming.Their original home town was Southern CAL but here the malescall and start displaying probably in December.In W.Wash  both sexes largely live in suburban areas.Females  can start nest-building by January. They  tour MALE territories before they pick a parent for their brood.These territories might be 100 yards or so apart.Last year's FEMALES can certainly breed twice, but not alwaysin same nest. They favor FEEDERS, but use flowers of several colors,native & ornamental, plus sap, insects, cement  & more.They can be harder to find by July when they might be in molt.Anna's certainly arrived in the PNW by 1946 (Vancouver Island)Males are aggressive in mating & territory protection. Haveseen one attack a Bald Eagle in flight Thanks to American Nat Hist Museumfor funding and Garrett Eddy for early study info. David _______________________________________________
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