We are "reverse snowbirds," permanent Florida residents who follow the
birds north to our Illinois condo in the spring. We reverse the process
and return to catch up with them in the fall as they stream back across
Florida. This spring was particularly unproductive near our home in
interior southeast Florida, as strong easterly wind flow across
the peninsula caused neotropical migrants northbound from Cuba to
follow the west coast or fly directly across the Gulf of Mexico.
However, when we arrived in Illinois in early May, we were greeted
with cold and rainy weather for the first two weeks of our stay, and
again were disappointed at a poor turnout of warblers. By the end of
the month, the weather turned sunny, windy and hotter than back home in
Florida.
The vagaries of Chicagoland weather reminded me that
just the opposite happened late last May, nearly at the end our stay in
Illinois, when I was pretty much side-lined. The weather had taken a
nasty turn, with cold rain and light frost two mornings the previous
week. On top of that I came down with a bad sinus infection that
turned into bronchitis and wheezes. Waiting for the antibiotics and
inhalers to kick in gave me time to reflect upon a recent good birding
experience.
I
can credit Mary Lou for finding the best bird of last spring's Illinois
visit, her 506th North American life bird. We were walking in
the Aurora West Forest Preserve in Kane County, when we heard some loud
cackling and squawking noises that persisted for about 10 seconds. They
seemed to be from a bird, but were like nothing I had ever heard
before. The nearest I could imagine would be a chicken-like species,
but did not think that bobwhites or pheasants ever made sounds like
that. Then, she spied a fairly large bird low in a tree right next to
the trail. As it was partially hidden among the leaves, I almost
dismissed it as a thrasher or a grackle. It flew a few yards to another
tree and we noted its white undersides, plain brown back, and drooping
tail. It lacked rufous in its wings, which are characteristic of the
more common Yellow-billed Cuckoo.
Then it softly called "ku-ku-ku...ku-ku-ku..." and I recognized its call as that of a Black-billed Cuckoo:
In addition to its all-black bill, it also had small under-tail spots and a red ring around its eye:
We also encountered a Swainson's Thrush, with is drab brown back and tail and prominent eye-ring:
I felt welll enough to celebrate
International Migratory Bird Day the next weekend by helping staff the
Kane County Audubon Society booth at the Bird Fest. In anticipation of
leading a bird walk, Mary Lou and I scouted out the planned route,
located at Peck Farm Park in Geneva, Illinois. On a sunny and warm
morning, two days before the Fest, we found lots of birds, some of which
were seen up close and personal-- just the kind of views that we hoped
would enthrall the anticipated (mostly young) participants.
As we entered the path for the bird walk, we saw that Tree Swallows had occupied one half of a double-sided bluebird house:
The second member of the Tree Swallow pair stood guard in a small tree next to the nest:
For
my forthcoming walk, I planned to provide my interpretation of the
reason why the bluebird houses were placed back-to-back. Tree Swallows
aggressively defend their nesting territory against all other bird
species, but especially other Tree Swallows. It has been shown that
pairing of bluebird houses, either back-to-back or only a few feet
apart, and then leaving a space of some 100 yards before erecting
another pair of boxes, may provide bluebirds a better chance at nesting
in one of the paired boxes.
It
seems that the Tree Swallows are more tolerant of other species if they
are able to successfully defend their territories against other Tree
Swallows, and perhaps the two species assist each other in this
defense. House Sparrows can disturb this plan, as they claim the boxes
earlier in the spring, and usually are able to evict bluebirds. The
sparrows should generally be removed if they begin to colonize the bird
houses, as they can eventually displace all other species.
Indeed, the other half of the bird house had already been taken over by House Sparrows. The male was perched nearby:
The
kids love robins and they were singing all around the trails. I decided
it would be fun if I asked them to close their eyes and try to identify
all the sounds around them:
I hoped the kids would be astonished by the sound and beauty of an Eastern Meadowlark:
Red-winged Blackbirds are so easy to identify by sight and sound, were also abundant:
American Goldfinches were numerous:
An Indigo Bunting sang from the lower branches of a tree next to the lake:
Among the Little Brown Birds (LBBs) were a Song Sparrow...
...a Swamp Sparrow...
...and a partially hidden Savannah Sparrow, all readily distinguishable to a beginner by voice, if not appearance:
We heard the "CHE-BEK" calls of three Least Flycatchers:
On
the way back, we identified the "FITZ-BYEW" calls of two Willow
Flycatchers in the small willows along a creek (the red barn is out of
focus behind the bird):
A
territorial Common Yellowthroat, singing one of the endless varieties
of its "WICHITY-WICHITY-WICHITY" song peered up at us from beneath a
shrub that we were sure would soon be a nesting site:
We
had seen 32 bird species in the course of an hour, and I looked forward
to the Bird Fest, only two days away. Unfortunately, a strong cold
front rolled in the next day, and temperatures dropped from near 80
degrees into the 40s that afternoon. It rained during the night, and in
the morning we set up our booth on the porch of the Peck Farm Park
interpretive center, fighting high winds from the north and a wind chill
in the low 30s that kept the crowds away. I led the 10:30 AM bird walk
for five hardy participants. One was a little girl who wore a flimsy
fleece jacket but who participated enthusiastically. After 15 minutes
the others gave up, yet she and her father kept with me as we tallied a
paltry count of 13 species over the next half hour. By then I was miserable
with chills and fever, but her spirit was heartwarming!
Index to prior ROSYFINCH RAMBLINGS posts
Wow Ken that's a fantastic sighting and shots of the Black-billed Cuckoo--really stellar bird. Leading those trips sounds fun, especially up there in Illinois where it looks like y'all were just dripping with beautiful birds.
ReplyDeleteWonderful image of the Cuckoo Ken! What a great find.
ReplyDeleteYour probably helped that little girl along the path to becoming a great birder, I'm sure her enthusisiam was contagious.
Terrific post, Ken! Seeing that Black-billed Cuckoo must have been especially exciting. Your photographs are wonderful! I very much enjoyed reading about your bird walk at Peck Farm Park. You saw some real beauties. How lucky the enthusiastic little girl was to have you as her guide. Chicago weather can be so very unpredictable.
ReplyDeleteWonderful post and images Ken! I really like that Black-billed Cuckoo close-up. Amazing! Hope you are feeling better and that you are able to continue to inspire birders around you.
ReplyDeleteWhat a story and what a trouper that little girl was! Great shots of a variety of birds.
ReplyDelete