Prothonotary Warbler
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DAVID A LEATHERMAN
Nov 23, 2013, 2:51:56 PM11/23/13
to COBIRDS
Nice find, Art Hudak, on the Prothonotary Warbler.
This is perhaps a cherry on top of the November warbler parade in Colorado, which by my count now totals at least 13 species (Tennesee, Orange-crowned, Northern Parula, Yellow-rumped, Black-throated Green, Pine, Palm, Bay-breasted, Blackpoll, Prothonotary, Ovenbird, Common Yellowthroat, and Wilson's).
Intrigued by Steve and Cheryl's reports of "hawthorn", chokecherry (its fruits should be long gone or dried up by this date but it could have lingering aphids), or some other woody berry plant being involved in the diet of this Prothonotary, I check the BNA account. There is one winter diet study in Panama that listed fruit as making up 10% of the diet. I would really appreciate confirmation this bird is, indeed, eating fruit and what kind of fruit it is. Thanks.
Dave Leatherman
This is perhaps a cherry on top of the November warbler parade in Colorado, which by my count now totals at least 13 species (Tennesee, Orange-crowned, Northern Parula, Yellow-rumped, Black-throated Green, Pine, Palm, Bay-breasted, Blackpoll, Prothonotary, Ovenbird, Common Yellowthroat, and Wilson's).
Intrigued by Steve and Cheryl's reports of "hawthorn", chokecherry (its fruits should be long gone or dried up by this date but it could have lingering aphids), or some other woody berry plant being involved in the diet of this Prothonotary, I check the BNA account. There is one winter diet study in Panama that listed fruit as making up 10% of the diet. I would really appreciate confirmation this bird is, indeed, eating fruit and what kind of fruit it is. Thanks.
Dave Leatherman
JBreitsch - Denver
Nov 23, 2013, 5:59:49 PM11/23/13
to cob...@googlegroups.com
The Prothonotary Warbler is definitely eating the fruit.
Great find, Art
John Breitsch
Denver, CO
Rob Parsons
Nov 23, 2013, 8:07:31 PM11/23/13
to cob...@googlegroups.com
Hi all,
My tentative guess is the fruit is European buckthorn. Dave
Leatherman, would you confirm or refute? If it is, do you see a lot of
this in Colorado? It’s unfortunately fairly common where I live.
Definitely an invasive exotic, but birds like the berries and contribute to its
spread as a result.
Cheers,
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DAVID A LEATHERMAN
Nov 24, 2013, 1:59:14 AM11/24/13
to pars...@mts.net, COBIRDS
Rob, et al,
Yes, European Buckthorn. I agree that is what all the pics people have been sending seem to show the bird is eating. Yes, it is widely planted, and yes, it escapes, gets spread, definitely deserves the moniker of "invasive exotic". Thanks to all who have sent me photos. Interesting situation. Birds do what they have to do. Insects are probably what these neotropical migrants want as a first choice, but in a pinch the Ovenbird in Bill's yard and this Prothonotary clearly prove they can handle millet and fruit, respectively, and probably a lot of other things if they get desperate enough.
Dave Leatherman
Fort Collins
From: pars...@mymts.net
To: cob...@googlegroups.com
Subject: Re: [cobirds] Re: Prothonotary Warbler
Date: Sat, 23 Nov 2013 19:07:31 -0600
Yes, European Buckthorn. I agree that is what all the pics people have been sending seem to show the bird is eating. Yes, it is widely planted, and yes, it escapes, gets spread, definitely deserves the moniker of "invasive exotic". Thanks to all who have sent me photos. Interesting situation. Birds do what they have to do. Insects are probably what these neotropical migrants want as a first choice, but in a pinch the Ovenbird in Bill's yard and this Prothonotary clearly prove they can handle millet and fruit, respectively, and probably a lot of other things if they get desperate enough.
Dave Leatherman
Fort Collins
From: pars...@mymts.net
To: cob...@googlegroups.com
Subject: Re: [cobirds] Re: Prothonotary Warbler
Date: Sat, 23 Nov 2013 19:07:31 -0600
To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/BAY175-DS212E9639DCEA9B58F204A18FE20%40phx.gbl.
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