[TN-Bird] Re: Warbler Question
- From: Andrew Core <andrewcore@xxxxxxxxx>
- To: TN-Bird <tn-bird@xxxxxxxxxxxxx>
- Date: Mon, 23 Mar 2015 12:51:20 -0700
Another way to answer this would be to look in ebird at the all-time first
"arrivals" for a region; this gives the earliest calendar date that a
species has been reported in ebird. For most winter and resident species,
this will be early January, but for migratory birds it gives a picture of
when to start looking for them.
For Knox County (I used this because it has more data; change to whatever
county you want) the link is:
http://ebird.org/ebird/sightings?listType=first&locInfo.regionType=subnational2&locInfo.regionCode=US-TN-093&beginYear=1909&endYear=2015&continuous=false
Scroll down to #185 for the first of the warblers.
185 Ovenbird Apr 6, 2012
186 Worm-eating Warbler Apr 10, 2000
187 Louisiana Waterthrush Mar 27, 2010
188 Northern Waterthrush Jan 2, 2005
189 Blue-winged Warbler Apr 3, 2013
etc. Again, these are the outliers, the first of their species to be
recorded in the region, not when the peak is. It's also fun to sort by date
(click the column header) to scroll through the calendar and see what shows
up throughout the year... or see the Departures (last seen in the year), or
High Counts (both available on top line).
Note, however, that an overwintering bird (like the January Northern
Waterthrush) can give you a false expectation for when to seriously start
looking! Still, in conjunction with the barcharts you can get a good
picture of when they start trickling in.
Here's a barchart for Knox County and the surrounding 8 counties - I have
it bookmarked for easy access:
http://ebird.org/ebird/GuideMe?step=saveChoices&getLocations=counties&parentState=US-TN&bMonth=01&bYear=1900&eMonth=12&eYear=2015&reportType=location&counties=US-TN-001&counties=US-TN-009&counties=US-TN-057&counties=US-TN-089&counties=US-TN-093&counties=US-TN-105&counties=US-TN-145&counties=US-TN-155&counties=US-TN-173&continue.x=53&continue.y=11&continue=Continue
or shortened, if that long link doesn't work for you:
http://goo.gl/9YJ9p4
Almost all the words on the barcharts are actually links - clicking "Apr"
at the top will limit it to species seen in April, clicking a species name
will take you to a more detailed analysis of it, "Map" next to each bird
shows you where it's been reported, etc.
more on barcharts:
http://help.ebird.org/customer/portal/articles/1010553-understanding-the-ebird-bar-charts
Andrew Core
Tucson, AZ
On Mon, Mar 23, 2015 at 9:29 AM, <kde@xxxxxxxxxxxxxxxxxx> wrote:
>
> Some of these dates seem a bit off for the Knoxville region as a whole but
> may reflect limited breeding areas in Anderson Co for some species if the
> eBird search was only conducted for that county.
>
> First to return will be the local breeders but they will usually go
> directly to the breeding grounds.
>
> Louisiana Waterthrush are the first to arrive not long behind the Purple
> Martins and Tree Swallows in late Feb - early March.
>
> Blue-headed Vireos show up by mid-March. Yellow-throated, Parula,
> Black-throated Green, and Black-and-white Warblers are next in late March.
> Some of those should start showing up this week in breeding areas (for
> example, BT Greens at Big South Fork and GSMNP) if not already there.
>
> By mid-April, most of the other local breeders like Hooded, Redstart,
> Ovenbird, Worm-eating, Prothonotary, etc should be around.
>
> Most of the far-northern breeders pass through in late April to early May
> with Blackpoll and then Mourning and Connecticut being some of the last to
> pass through.
>
>
> Dean Edwards
> Knoxville, TN
>
>
> On Sun, 22 Mar 2015, tim jeffers wrote:
>
> > Based on eBird data for Anderson Co:
> >
> > starting to show up in the last week of March -
> > Yellow-throated & Black-throated Green
> >
> > the first week of April -
> > Ovenbird, Louisiana Waterthrush, Black-and-white and Northern Parula
> >
> > 2nd week of April
> > Northern Waterthrush, Blue-winged, Tennessee, Common Yellowthroat,
> > Hooded, Chestnut-sided, Prairie and Yellow-breasted Chat (if it is still
> a
> > warbler)
> >
> > 3rd week of April
> > Golden-winged, Nashville, American Redstart, Cerulean, Yellow and
> > Blackpoll
> >
> > 4th week of April
> > Prothonotary, Kentucky, Cape May and Magnolia
> >
> > 1st week of May
> > Worm-eating, Blackburnian and Black-throated Blue
> >
> > 2nd week of May
> > Swainson's and Bay-breasted
> >
> > (Pine, Palm, Yellow-rumped and Orange-crowned may be found thru the
> winter.)
> >
> > There is not a huge set of data for Anderson so some these may not be
> real
> > accurate, but I think it gives a decent idea.
> >
> > Tim Jeffers
> > Hamilton Co
> >
> >
> > On Sun, Mar 22, 2015 at 1:57 PM, Bates Estabrooks <wgpu@xxxxxxxxxxx>
> wrote:
> >
> > > Being sick of winter and very eager for spring to arrive here in East
> > > Tennessee I've been thinking about warblers. So I have a question.
> > >
> > > What species of warblers would be the first arrivals here in East
> > > Tennessee and about when should we expect to see them?
> > >
> > > :-)
> > >
> > > Bates Estabrooks
> > > Anderson County
> > >
> > > *Sent from my Verizon Wireless 4G LTE DROID*
>
>
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