[wisb] Fw: Re: Belated Dane Co Weekend Sightings
- From: "Kent" <kentsue@xxxxxxxxxxx>
- To: "Wisconsin Birders Network" <wisbirdn@xxxxxxxxxxxxx>
- Date: Tue, 8 Dec 2009 13:33:40 -0600
Birding Enthusiasts:
I note that several particpants with this chat group still use the word,
"phase"
to describe color "morphs". Below is a memo I sent to one such participant.
Kent Hall
Stevens Point (Portage Co.)
>
> I challenged you to raise your consciousness about these two usages. Lay
> people
> (even some professionals) still use the out-dated word, "phase" to
> describe two
> color morphs that are distinct genetically. The reason, "phase" is
> inappropriate
> is that it implies that the description is something that will change over
> time, such
> as "going from one phase to another".
>
> Wheeler & Clark in their 1995 "A Photographic Guide to North American
> Raptors"
> define the words as follows: Phase: Term formerly used for color morph.
> Phase implies
> a temporary condition; color morphs are permanent. See "morph". Morph:
> Term
> used for recognizably different forms of a species, usually color related.
> Color
> morphs are dark, rufous, and light. See also "phase".
>
> I know of no professional avian biologist who uses phase when morph is the
> proper
> usage--at least in print. If you don't mind using canadian Goose instead
> of Canada
> Goose, then this difference might not be important to you. But if you
> would like
> to state things correctly from an accepted biological standpoint, perhaps
> these definitions
> might be of interest.
>
> Kent D. Hall, Ph.D.
> Professor Emeritus of Biology
> Dept. of Biology
> UW-Stevens Point
>
> ----- Original Message -----
> From: "Steve Thiessen" <stevethiessen@xxxxxxxxxxx>
> To: "Kent" <kentsue@xxxxxxxxxxx>
> Sent: Tuesday, December 08, 2009 12:20 PM
> Subject: Re: [wisb] Re: Belated Dane Co Weekend Sightings
>
>
>> Hi Kent,
>> Now that's a good question and to tell you the truth I don't know what
>> the difference is. In Hawks in Flight page 21 drawing E it's call a dark
>> phase. Hawks from Every Angle doesn't use the word phase.
>> This bird has a dark red tail and in flight it looks black, not rufous.
>> Flight feather are light. Kind of the turkey vulture look. I know that
>> some blackish red tails are really a dark rufous on the breast when the
>> lighting is right.
>> Last year I saw a similar colored imm. and the adult.
>> So, I don't know if I answered the question. But I tried, Steve
>> ----- Original Message -----
>> From: "Kent" <kentsue@xxxxxxxxxxx>
>> To: <stevethiessen@xxxxxxxxxxx>
>> Sent: Tuesday, December 08, 2009 10:35 AM
>> Subject: Re: [wisb] Re: Belated Dane Co Weekend Sightings
>>
>>
>>> Steve:
>>>
>>> Was that a dark phase or a dark morph?
>>>
>>> Kent Hall
>>> Stevens Point
>>>
>>> ----- Original Message -----
>>> From: "Steve Thiessen" <stevethiessen@xxxxxxxxxxx>
>>> To: <agstutz@xxxxxxxxxxxxx>; <wisbirdn@xxxxxxxxxxxxx>
>>> Sent: Tuesday, December 08, 2009 1:34 AM
>>> Subject: [wisb] Re: Belated Dane Co Weekend Sightings
>>>
>>>
>>>>
>>>>
>>>> I saw the dark phase red-tailed hawk at the landfil on Nov. 30th this
>>>> year.
>>>> As far as the landfill goes, they have been dumping over the top of the
>>>> highest part. So observing gulls, isn't as close as last year.
>>>> John Romano and I had the adult Glaucous gull on Waubesa this
>>>> afternoon, but
>>>> nothing else of interest. Marty E. had the other good gulls there on
>>>> Sunday.
>>>> Steve Thiessen Stoughton Dane co.
>>>> ----- Original Message -----
>>>> From: "Aaron Stutz" <agstutz@xxxxxxxxxxxxx>
>>>> To: <wisbirdn@xxxxxxxxxxxxx>
>>>> Sent: Monday, December 07, 2009 7:30 PM
>>>> Subject: [wisb] Belated Dane Co Weekend Sightings
>>>>
>>>>
>>>>> Hi all,
>>>>>
>>>>> I squeezed in a little birding this weekend. Scoped Lakes Monona and
>>>>> Mendota from a few spots...
>>>>>
>>>>> Saturday
>>>>> 1 Common Loon on each lake and I re-found the female LONG-TAILED DUCK
>>>>> off Gov. Nelson SP.
>>>>> Only 2 Common Mergansers
>>>>> Various Common species
>>>>> 20-25 Tundra Swans near Gov. Nelson SP
>>>>>
>>>>> On my way to visit family in Milwaukee on Sunday I made a quick stop
>>>>> at
>>>>> the landfill off Hwy 18 east of Madison--most of the gulls had left,
>>>>> but
>>>>> a distant dark buteo was perched on a metal structure in the middle of
>>>>> the landfill. The bird was rather distant and time was short (my son
>>>>> was fussing) so I didn't have time to study the bird and id it to
>>>>> species, but I seem to recall someone reporting a dark red-tail over
>>>>> there last winter. Perhaps it returned?
>>>>>
>>>>> Aaron Stutz
>>>>> Madison, WI
>>>>> Dane County
>>>>> ####################
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>>>>>
>>>>>
>>>>
>>>>
>>>> ####################
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>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>
>
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