[wisb] Re: Immature vs. juvenile (no WI sightings)
- From: Chris West <little_blue_birdie@xxxxxxx>
- To: <mikeduchek@xxxxxxxxxxx>, "[Wisb]" <wisbirdn@xxxxxxxxxxxxx>
- Date: Tue, 11 May 2010 22:22:52 -0500
Mike and all,
Juvenile is actually the technically correct term to use. Juvenile refers to a
specific stage in development. My understanding is that Juvenile usually refers
to a first year or fledgling bird.
Immature refers to any stage of development younger than Adult.
Happy Birding! --Chris W, Richland County
http://swallowtailedkite.blogspot.com/
http://www.flickr.com/photos/swallowtailphoto
"The beauty and genius of a work of art may be reconceived, though its first
material expression be destroyed; a vanished harmony may yet again inspire the
composer; but when the last individual of a race of living things breathes no
more, another heaven and another earth must pass before such a one can be
again."
(From William Beebe's "The Bird: Its Form and Function," 1906)
> From: mikeduchek@xxxxxxxxxxx
> To: wisbirdn@xxxxxxxxxxxxx
> Subject: [wisb] Immature vs. juvenile (no WI sightings)
> Date: Tue, 11 May 2010 22:06:53 -0500
>
> Just a quick question: what is the difference between a juvenile bird vs. an
> immature, for eBird reporting purposes and otherwise? I have seen young
> great horned owls here in our woods in Waukesha and was wondering if these
> should be considered juveniles or immatures? So when does an immature bird
> become a juvenile (or vice versa, if I have it reversed)?
>
>
>
> I also spent this weekend on Lake Kabetogama at Voyageurs National Park in
> far NE Minnesota. I wasn't willing/able to drag my companions into too much
> hiking/birding, but did manage to hike a couple of the trails. On the Echo
> Bay Trail just down the road from where we stayed I was treated to several
> gray jays, including at least 2 immature/juvenile birds. Neat to see, as the
> immatures/juveniles are entirely black, besides being quite vocal. I also
> find gray jays (and Steller's jays) to be a lot more approachable than, say
> blue jays. Always neat to see these big birds so up close.
>
>
>
> Was also neat to see a stuffed great gray owl and boreal owl at the visitors
> center, both of which I have yet to see in real life.
>
>
>
> Thanks a lot,
>
>
>
> -Mike Duchek, Waukesha, Waukesha Co.
>
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