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The Navarre Marsh
Migration Monitoring Station is located in Navarre Marsh
behind the Davis Besse Nuclear Power Station on Toledo
Edison property.
Migration monitoring consists of constant effort
mist netting and
morning point
counts (5 minute counts at 6 locations at the
research site). Habitat is remnant beach ridge
consisting of canopy trees of Hackberry, Kentucky
Coffeetree, and Cottonwood with tremendous under story
of rough-leaved Dogwood on the sand ridges. This is
similar to the vegetation found on the most know beach
ridge of the Magee Marsh Bird Trail. Two other remnant
beach ridge habitats in Northwest Ohio are on the Darby
unit of the Ottawa National Wildlife Refuge and at the
Cedar Point National Wildlife Refuge. The Navarre beach
ridge is the largest of them all occupying about 370
acres of wetland and beach ridge habitat.
The Navarre Marsh
Migration Monitoring Station is on private property and not open to the public, however, we are
able to give
programs
to groups at the site when special arrangements are
made in advance.
We would love to hear from
you. Let us know how you like
the BSBO Bander's Blog by emailing us at
researchers@bsbo.org
ab
SPRING
2008
Tuesday, 13 May
Light fog this morning which cleared up with a southeast
winds and sunshine all day. Nets were up 6 hours 40
minutes with a capture of 122 new banded birds and 68
recaptures. Several more old banded Yellow Warblers and
the Sharp-shinned Hawk we banded yesterday. The day’s
catch included 31 species with 14 warbler species.
Highlights for the day were a Summer Tanager female,
Yellow-bellied Sapsucker female, Eastern Kingbird, and
several Ruby-throated Hummingbirds. We heard the Summer
Tanager calling when we set up the nets this morning and
sure enough this afternoon she came low enough to visit
the net. It was a surprise to see the sapsucker. They
are normally gone by mid-May.

Summer Tanager female

Summer Tanager female

A nice After-second Year (ASY) male Baltimore Oriole
with its great tail pattern to show off.
An interesting sighting today, while walking up to a net I
saw a White-crowned Sparrow near the net on a log
displaying its crest to another White-crown caught in
the net. It was walking up and down the log with its
feathers on its crown all poofed up. It looked like a
black and white afro on its head. I have seen the crest
raised so it looks like a point on its head but I had
never seen the feathers on its head raised this much.
This was like a small black and white striped golf ball
on top of its head. There is never a boring moment in
nature—that is for sure!
Top 7 species for the day:
|
Species |
Number Banded |
|
White-throated Sparrow |
30 |
|
Yellow Warbler |
13 |
|
Gray Catbird |
12 |
|
White-crowned Sparrow |
8 |
|
Nashville Warbler |
7 |
|
Myrtle (Yellow-rumped) Warbler |
7 |
|
Red-winged Blackbird* |
7 |
*most of these were females coming to the ground to look
for nesting material.
The weather may cause us to dodge raindrops tomorrow but it
looks like a good chance for the second wave of migrants
to make a push. Tonight the winds are to be south
southeast with a low in the 50’s. It could be good for
bird watching tomorrow. We shall see if the weatherman
gets it right.
Enjoy the day!
Julie Shieldcastle
_________
Monday 12, May
The weather makes you wonder if it is May or April
outside. Cool and drizzly this morning with a strong
north wind which dampened the birds from moving around.
The temperatures were in the low 50’s even by afternoon
and the sun never came out. I never thought we would
catch a Ruby-throated Hummingbird today in this weather
but one male made an appearance. Another highlight for
the day was a recapture of a Sharp-shinned Hawk we
caught several days ago and a new one. We are up to 13
Sharpies for the spring. We had 25 recaptures today with
2 Yellow Warblers, 1 Warbling Vireo, 1 Prothonotary
Warbler, 1 Common Yellowthroat, and 1 Gray Catbird
returning to the station from previous years. We have
not caught any foreign recoveries, i.e. someone else’s
banded birds, yet this year.
Despite the weather we caught and banded 93 new birds, 30
species which included 15 species of warbler. At the
first net check there was a net with 5 Rose-breasted
Grosbeaks in it! What a noise they make! Their squawk is
quite obnoxious---however, once you have heard it you
can tell it is a grosbeak when you hear it anywhere!
With the strong winds, the birds were hunkered down in
areas out of the wind.

Here is the net with the grosbeaks in it, just imagine the
noise….
Top seven species for the day:
|
Species |
Number Banded |
|
Nashville Warbler |
14 |
|
Yellow Warbler |
10 |
|
Red-winged Blackbird |
9 |
|
Rose-breasted Grosbeak |
6 |
|
White-throated Sparrow |
6 |
|
Black and White Warbler |
6 |
|
Gray Catbird |
5 |
If the winds turn to the south, it looks like this week will
be good for a push of second wavers - orioles, tanagers,
grosbeaks, tons-of-Magnolia Warblers and potential for
20 plus species of warbler. Tomorrow winds are going to
be from the SE so a better day is in store!

Quiz bird for you and always a great bird to see, what
is this bird?
Enjoy the beauty of the season!
Julie Shieldcastle (female Blackburnian Warbler)
_________
Sunday, 11 May
Well, the weatherperson was right on the forecast… It
rained after the nets were put up for
a couple of hours. There were definitely birds out there. Then the rain shut
us down completely. For the day we caught 65 new birds
with 11 recaptures. Thirteen warbler species for the
day…not bad for a short day.
We caught our first Great Crested Flycatcher this year! It
was neat because you could tell it was a second-year
bird (hatched last year). It is not always as easy as
one would think to see the differentiation in the
primary covert wear on brown feathers.
Top 6 species for today:
|
Species |
Number Banded |
|
Gray Catbird |
10 |
|
Ovenbird |
8 |
|
White-throated Sparrow |
6 |
|
Common Yellowthroat |
5 |
|
American Redstart |
4 |
|
Veery |
4 |
Look for the wind changing to the south and then the bushes
will be dripping with Magnolia Warblers!
Enjoy the beauty of the season!
Julie Shieldcastle
_________
Saturday May 10th—International Migratory
Bird Day!
And where were you on this date! It seemed like everyone
was here in the Marsh Region celebrating the return of
the songbirds! Forces were split up today with a public
banding demonstration at the west entrance of the Magee
Marsh W/A boardwalk and running the Navarre station.
Nice variety of birds at the boardwalk from what I
heard. I only saw what was around the parking lot.
Around 10:00 AM while walking to cheek the mist nets for
the demonstration there were 100+ people surrounding the
Port-o-Johns looking up in the trees overtop. What a
sight that was! Of course, we had to stop and ask what
they were looking at. Can you believe it a
Yellow-throated Warbler be-bopping over the top of the
Port-o-Johns! It was around for some time because at
5:00 PM it was still in the trees near the parking lot
above my truck. You never know what you might see and
where you might see it.
Not much diversity at the banding demonstration. Lots of
Myrtle Warblers, blackbirds, and White-throated Sparrows
were caught out of the total of 77.
Here are the results from Navarre: 106 New banded birds of
23 species including 40 recaptures. Fourteen warbler
species caught today. Lots of Red-winged Blackbirds and
House Wrens jumped in the nets today.
Top 7 species for
Navarre today:
|
Species |
Number banded |
|
Myrtle (Yellow-rumped) Warbler |
18 |
|
Western Palm Warbler |
15 |
|
Red-winged Blackbird |
11 |
|
White-throated Sparrow |
10 |
|
Yellow Warbler |
9 |
|
Nashville Warbler |
8 |
|
House Wren |
7 |
Looks like rain tomorrow and an easterly wind so it is not
looking good. Maybe the weatherperson will have an
incorrect forecast.
Enjoy the spring colors!
Julie Shieldcastle
_________
Friday, 9 May
Another nice day to be outside! Discovery Tours, an
Arizona tour group, visited the banding station today. They were in for a real
treat! We also had the pleasure of a few banders from
New York and surrounding states. It is always a pleasure
to have visiting researchers see our operation and share
ideas and talk shop.
For the day we had a total of 190 new birds including 30
species and 38 recaptures. More of those lovely
White-throated Sparrows are sticking around for a few
more days.
The highlights for the day were a Red-headed Woodpecker, two
more Sharp-shinned Hawks, Red-breasted Nuthatch, and
male and female Northern Parulas. Twenty species of
warbler were caught today with 22 seen on the area.
Top 8 species for the day:
|
Species |
Number Banded |
|
Myrtle (Yellow-rumped) Warbler |
88---*close to reaching 1,000 for the spring |
|
White-throated Sparrow |
19 |
|
Western Palm Warbler |
15 |
|
Nashville Warbler |
9 |
|
Red-winged Blackbird |
6 |
|
Blackpoll Warbler |
5 |
|
Magnolia Warbler |
5 |
|
Yellow Warbler |
5 |

Look at the large white wing patches on this Red-headed
Woodpecker
Enjoy Spring!
Julie Shieldcastle
_________
Thursday, 8 May
I should have known the weatherperson did not know how
to predict the weather. The only thing they got correct
was the wind direction. No rain at our station today.
The winds started out northwest and by 11:00 AM were out
of the east northeast which quieted down the birds.
There was still a nice variety around despite the chill
in the air. During the point count this morning there
was a Ruby-throated Hummingbird feeding ravenously on
the flowers of the bladdernut shrub. Quite a few Barn
Swallows moving around the marsh here in Navarre and at
Magee Marsh this afternoon.
Today we had 125 new birds and 31 recaptures which included
29 species. Most of the recaptures consisted of
White-throated Sparrows. There also was more
White-throated Sparrow song in the marsh today. The
north winds must have pushed some down. It has been many
days that we have had that much song by White-throats.
Two more old banded Gray Catbirds, a Yellow Warbler, and
a Prothonotary Warbler from previous years. Finding out
the original banding year is a rainy day project.
Highlights were of course the Blackburnian Warbler male with
the glowing orange throat, Yellow-breasted Chat,
Orange-crowned and Bay-breasted Warblers. It has been
interesting that most of the Orange-crowns caught
recently were early. Today we had 3 before 07:00 AM. I
guess you might have to come early to get a glimpse of
Orange-crowns when out birding. Sixteen species of
warblers were captured with two others heard on the
site.
Top 6 species
for today:
|
Species |
Number Banded |
|
White-throated Sparrow |
26 |
|
Myrtle Warbler |
19 |
|
Yellow Warbler |
12 |
|
Magnolia Warbler |
9 |
|
American Redstart |
8 |
|
Northern Waterthrush |
6 |
Just for fun here is your quiz bird for today (answer at the
bottom).

And another gorgeous bird that is in trouble is the
Yellow-breasted Chat. Its numbers are declining with the
removal of its breeding habitat of 3 plus acres of
shrub/scrub required for nesting by these birds. The
more shrub/scrub habitat the better. BSBO once owned
Christy Farms Nature Preserve which had a large patch of
shrub/scrub about 4 acres and one year this parcel had 3
pairs of chats and at least one extra male. We knew this
because we ran a breeding bird project on the property
as part of the national bird monitoring program -
Monitoring Avian Productivity and Survivorship (M.A.P.S.)
where we caught them on the area. It was quite an eye
opening experience to have that many chats in that area.
Shrub/scrub habitat doesn’t look clean and neat and most
landowners do not like the looks of it. However, it has
so many benefits in all seasons. Shrub habitat is great
for migratory stopover habitat for songbirds with a lot
of surface area for bugs. Blocks of this habitat
provides breeding habitat for birds restricted to those
habitats such as chats, towhees, and thrashers. It
provides good cover in the winter too and many times
provides food resources depending on the shrub species.
A banding million dollar question: Can you determine the sex
of this chat in this picture?
Answer: Yes, you can sex chats by their mouth lining. If it
is pink then it is female if it is black then it is a
male. So there you have it. This one is a male. One must
be careful in determining males by the brilliance of
their colors because older females of the same species
can take on male coloration traits and often deepen
their colors.
There are many interesting things to see and learn in
nature.
Get out and enjoy Spring!
Julie Shieldcastle
_________
Wednesday, 7 May
Another beautiful day in the marsh, southwest winds
brought in a few more species but not a lot of volume
yet. The next few days look a little wet and winds will
turn to the northeast so the birds will not be going
north until the wind turns around. Total new banded
birds for the day was 230 including 47 species and 16
recaptures. More old Gray Catbirds returning today.
Twenty-two species of warbler were captured with 26
species seen/heard in Navarre. It seemed like an
exceptional early day for catching over a dozen American
Redstarts.
Highlights for the day were Ruby-throated Hummingbird, Hairy
Woodpecker, Gambel’s White-crowned Sparrow, Mourning
Warbler, Kentucky Warbler, Prothonotary Warbler, 5
Northern Parula, Hooded Warbler, Bay-breasted Warbler,
and Yellow-breasted Chat.
Gambel’s White-crowned Sparrow (Zonotrichia leucophrys
gambelli) is a western race of the White-crowned
Sparrow. The eastern race Zonotrichia leucophrys
leucophrys of the White-crowned Sparrow can be
identified by the presence of the black line in the lore
area. The Gambel’s race lacks the black in the lore
area.
Top 7 species for the day:
|
Species |
Number banded |
|
Myrtle (Yellow-rumped) Warbler |
39 |
|
White-throated Sparrow |
37 |
|
Western Palm Warbler |
19 |
|
Yellow Warbler |
15 |
|
American Redstart |
15 |
|
Ruby-crowned Kinglet |
11 |
|
Gray Catbird |
10 |

Beautiful head of the male Cape May Warbler

Pair of Cape May Warblers—note the female still has the
markings of the male but duller—I say the female has the
shadow field marks of the male. Except the female has
two wing bars and the male has one large wing bar.
There is always something to enjoy in nature.
Enjoy spring!
Julie Shieldcastle
_________
Tuesday, 6
May
Light winds
overnight did not produce much variety. Mid-morning the
winds shifted off the lake with the presence of the high
pressure system. It still was a beautiful day regardless
of the apparent lower diversity of species. Once again
Myrtle and Western Palm Warblers dominated the net
waves. I tend to ignore the many White-throated
Sparrows. They always seem to be around. However, one
should not be complacent about the numerous non-descript
birds. They are important too in the whole scheme of
things.

Baltimore Orioles were of
course around the station. A male Scarlet Tanager
serenaded but no chance for an up close visit today. The
best bird of the day was the male Black-throated Blue
Warbler. Nice adult male with a broad white wing patch
or handkerchief on its wing.
We caught our first Traill’s Flycatcher today. Traill’s
Flycatcher is what banders call the Alder and Willow
Flycatcher because they look similar and cannot be told
apart in most cases unless you take certain wing
measurements and then there is great overlap in the
measurements. Maybe one in ten can be keyed out to
either an Alder or Willow Flycatcher.
For just over 6 hours the nets were open to produce 188
new banded birds of 31 species and 16 recaptures. We
caught several older banded Gray Catbirds. There are
still a few Hermit Thrushes around. We did catch two
Gray-cheeked Thrushes so be on the lookout for the all
brown back and tail bird with no eye-ring.
Top 7 species for the day were:
|
Species |
Number banded |
|
White-throated Sparrow |
35 |
|
Myrtle (Yellow-rumped) Warbler |
31 |
|
Yellow Warbler |
19 |
|
Western Palm Warbler |
14 |
|
Nashville Warbler |
11 |
|
House Wren |
9 |
|
Swamp Sparrow |
8 |
The winds are to be
southerly tonight and tomorrow so it could be a good
migration day. So anywhere in the Lake Erie Marshes
should be good places to go. I heard that for
International Migratory Bird Day on Saturday and for
Sunday, Ottawa National Wildlife Refuge is having their
auto tour both days. This will be a good opportunity to
see different marsh and grassland habitats for migrants
including raptors, land birds and potentially
shorebirds.
There are a whole host of choices of what to do on
Saturday so come on out and enjoy the beauty and
spectacle of songbird migration! Bird walks, optic
displays, breakfast, lunch, and a whole lot more! The
Bird Observatory will have a banding demonstration to
see the migrants up close down at the west entrance of
Magee Boardwalk alongside Tom Bartlett’s BIG SIT. Don’t
miss the fun and camaraderie of the great birdwatchers
from all over the country and the world. This is a
statement to the value of this Lake Erie Marsh habitat.
Enjoy Spring!
Julie Shieldcastle

The pictures I promised you -
Male Summer Tanager from yesterday.

Female Scarlet
Tanager—Second Year bird-note the brown primary coverts:
So how do you tell a female Summer from a Scarlet
Tanager? The easiest way in the hand is the underwing
linings of the Scarlet Tanager are white and the Summer
Tanager wing lining is yellow. There are often other
coloration differences but for those that do not see
many this is the definitive characteristic.
_________
Monday, 5 May
Southwest winds brought in more birds today with few of
the second wave birds trickling in. The low pressure
cells are moving north soon after they hit the
Oklahoma/Arkansas region instead of moving east to
northeast. I am not complaining. We have had few
northeast or east winds which can cut down on the amount
of birds in our area. It has been busy and enjoyable
with the birds that we have had around.
I cannot speak for most of the day except from the numbers
given. I was conducting a banding demonstration for the
regional Soil and Water Conservation folks at Old Woman
Creek State Wildlife Area and by the way, it is a great
place to go bird watching too.
There was an Orchard Oriole and Baltimore Orioles taunting
me way up in the trees and I heard several species of
warblers from the Visitor’s Center. They have great
trails along the creek to explore for migrants too! We
have so many great places to bird in Ohio—it is one of
our greatest assets.
Back to the birds…. while I was working at Old Woman Creek
wouldn’t you know they caught a male Summer Tanager in
Navarre! Yeah, I only saw little pictures on the digital
camera view finder and guess what, you will have to wait
until tomorrow for the picture. No, it is not like the
check is in the mail, stay tuned they are coming…
The catch for today in Navarre consisted of 212 new banded
birds with 25 recaptures. Seventeen warbler species were
caught with the highlights for the day being Summer
Tanager, Golden-winged Warbler male, Cape May Warbler,
Eastern Kingbird, Yellow-breasted Chat!, and five
Red-breasted Nuthatches. Sure seems like the northern
birds are hanging around a bit longer than usual. I even
heard that a small flock of Pine Siskins were in the
trees in the parking lot of the Sportsman’s Migratory
Bird Center this afternoon. We did catch the first
Baltimore Oriole today!
Top 7 species for the day:
|
Species |
Number banded |
|
White-throated Sparrow |
26 |
|
Myrtle (Yellow-rumped) Warbler |
26 |
|
Gray Catbird |
21 |
|
Ruby-crowned Kinglet |
21* |
|
Nashville Warbler |
16** |
|
Western Palm Warbler |
14 |
|
Yellow Warbler |
14 |
*highest capture for the day for Ruby-crowned Kinglets
**12 birds were caught in one net at one time!
If
you cannot tell by now you all should be out birding
before work, after work, take off from work, take
vacation for the month of May and enjoy Spring! The
birds are everywhere! Enjoy the green spaces near you.
Julie Shieldcastle
_________
Sunday, 4 May
The day started out slow with little song from the
birds. It was cool in the 40’s and by 10:00 AM the
temperatures warmed up seemingly to activate the birds.
There were a lot of Myrtle Warblers and Western Palm
Warblers everywhere. Again we had a few Baltimore
Orioles singing but no luck with catching one. We have
caught some very old orioles in past years and I am
waiting on their return.
For the day we caught 208 new banded birds including 27
recaptures with highlights of a Scarlet Tanager female,
Prothonotary Warbler, and two more Sharp-shinned Hawks.
Nine Sharp-shinned Hawks have made a record catch for
the history of the project. Twenty-six species were
banded today including 13 species of warblers.
Top 7 species:
|
Species |
Number banded |
|
Myrtle (Yellow-rumped) Warbler |
100 |
|
Western Palm Warbler |
39 |
| |