Date: 6/5/25 3:24 pm From: <dhest......> <dhester1994...> Subject: [ia-bird] Re: Bird habitat destruction in the name Invasive species removal for Prairie and Oak Savannahs.
The issue is that although prairies support lower bird species diversity
than woodlands, they are a much rarer habitat globally. Warblers have lots
of woods to choose from, prairie species do not have many options. There
are around 300 million acres of natural broadleaf woodland in the USA,
there are only about 6 million acres of prairie.
-Dean Hester, North Liberty
On Wednesday, June 4, 2025 at 10:33:08 AM UTC-5 <will......> wrote:
> Hi everyone,
>
> I have held off on writing this because I know it will not be accepted by
> some but have in the past spoke with The Army Corp, Iowa DNR and the
> Naturalist for Big Creek. All relating to the destruction of bird habitat
> such as seen most recently at Lost Lake Trail - Ledges State Park at Cherry
> Glenn a couple years ago. Big Creek State Park every year even to the point
> of girdling, chemical spraying, then removing mature trees along with
> invasives on as small as one acre plots to turn into prairie.
> When I was young the Iowa DNR promoted the positive impact that "edges"
> had on wildlife. Today it is all about prairie and oak savannah, nothing
> else.
> I could go to Cherry Glenn and sit in one spot and see twenty species of
> birds including Warblers, Tanagers and Cuckoos. After the area was
> cleared of all undergrowth there has been none of these because the edges
> are gone. The same way with the walking path at Lost Lake Trail -Ledges
> which was a go to spot for me and others to see warblers in the Spring.
> This year they were few and far between after a group that thought they
> were doing the right thing cleared all the forest floor.
> I think IOU should get involved with input on what works for birds but
> when I was on the board told "Oh no, we can't get involved with that".
> Many of you have been taught in college that it's all about prairie and
> Oak Savannah but there has to be a reasonable acceptance that we are
> observing negative changes in our parks with these methods.
> I recently visited numerous parks such as Lacey-Keosaqua and you don't see
> the Brush Hog destruction along roadways in the parks that lay there for
> years as at Big Creek and Army Corp property. I hope they don't follow suit
> at DNR directive.
> When asked about large tree planting projects I'm told "We don't have
> funds for that". Yet there is plenty of money for equipment to destroy
> habitat. When asked if they were going to replant with native species to
> replace as they call "low value" berry bearing bushes, "We don't have funds
> for that". There's plenty of money for burning prairie which I don't have a
> problem with but there has to be a return to tree planting and "Edges". I
> don't understand how trees around the edges would negatively impact the
> prairie. The North end of Bays Branch in Guthrie county once had a very
> large woods/prairie area that once a Prairie Warbler was reported there.
> Now it's nothing but stumps and very few birds.
> IOU could have some input on this if the board would be willing to be
> proactive and ask these organizations to consider the edges we need for
> birds.
>
> Sincerely,
> Clayton Will
> Madrid
>
>
>
