A Northwoods
Almanac for May 27 – June 9, 2016
Whip-poor-wills
Rod Sharka sent me this email from his
home near Land O’Lakes: “Hey, aren't whip-poor-wills relatively rare up in this area? I've
never heard one up here in all the years I have been coming to this area, nor
in the 14 years I've lived here full time. But I heard...and saw...one this
evening. It was sitting on the peak of my house and singing VERY LOUDLY for
about 15 minutes at about 9:15 p.m. It must have been singing the whip-poor-will
version of "Happy Birthday" to my wife, Myrtle. Then it just flew off
and disappeared. Very cool experience, but I'm glad it did take off as that
little bugger was LOUD.”
Whip-poor-wills are indeed both
uncommon in this area and very loud. The Atlas
of the Breeding Birds of Wisconsin shows that the bird was detected in
nearly one-third of the Atlas quads, which indicates that it remains
widespread, but that the population appears to be steadily declining.
The real problem is trying to study this amazingly cryptic bird. Its
well-camouflaged eggs and young, and its habit of foraging and breeding between
dusk and dawn, make it one of the least-studied birds in North America. For
example, while whip-poor-wills were heard in all those quads statewide, only
nine nests with eggs were actually found, and only one nest with young was
located. It’s hard to study a bird you simply can’t find.
A whip-poor-will lays its clutch of two eggs directly on the forest
floor, and remains motionless on the nest or on a roost site during daylight
hours. They usually forage for insects only at dawn or dusk, but on moonlit
nights, they may forage all night long. Interestingly, the hatching of their chicks
seems to be tied to periods of the full moon, so the parents can bring food
throughout the night to their brood.
Whip-poor-wills become active about 30 minutes after sunset and continue
feeding as long as there’s sufficient light. If it’s cold, rainy weather,
however, they sit tight and don’t forage. Near first light, they begin feeding
again and finish about 40 minutes before sunrise.
As for their loud singing, in one study, a whip-poor-will called
approximately 59 times every minute – in other words, every second. A calling
period lasts sometimes for 15 minutes or more and some are reported to have
called continuously over 1,000 times.
At
first, hearing a whip-poor-will is exciting since they’re so uncommon. But as
the song goes on and on and on, the thrill can succumb to annoyance and eventually
to total exasperation, particularly if you’re trying to sleep. Whip-poor-wills
only eat insects, including mosquitoes, so that helps moderate one’s
aggravation.
Population declines of whip-poor-wills appears due to several factors: habitat
loss to agriculture, closing of forest openings due to growth and succession of
trees, urbanization, and destruction of underbrush that provides nesting cover.
Whip-poor-wills winter along the Gulf Coast and throughout Central
America, so perhaps there are issues as well in their wintering habitats.
Wisconsin Birdathon
Our Northern Highland birdathon
team took to the woods and wetlands at 4 a.m. on Sunday, 5/22, starting first
at the Little Turtle Flowage, a birding hotspot a few miles northwest of
Mercer. The moon was full, fog covered much of the marsh, and the temperature
was a surprisingly comfortable 47° (just a week earlier, we led bird trips in
snow squalls).
full moon on Little Turtle Flowage |
Our first
bird was a robin, singing in the dark at 3:45 as we pulled out of our driveway.
We start early in the morning to try to hear night singers like barred and
great horned owls, or those birds which seem to sing only at first light and
then are quiet for most of rest of the day. Our strategy failed – no owls, and
no unusual early morning singers. One of the members of our team suggested we
could have started at 7 a.m. and still have gotten the same number of birds.
Too true, but we would have missed the camaraderie of standing around in the
cold, sleep-deprived, watching the moonlit fog, listening intently for songs,
and swapping stories about birds. What could be better than that?
Our team
of slightly crazed people (Bruce Bacon, Sarah Krembs, Guy David, Mary Burns,
Chris Paulik, Vanessa Hesse-Lehman, and Mark Lehman) worked beautifully
together, each person merging their set of birding skills and sensory acuity
with the others so that we made one expert birder – the community always being
stronger than the individual.
We spent
over three hours at the Little Turtle, drove to Bruce’s home area to find some
nesting cardinals and Eastern bluebirds, then checked out some older-growth
forest habitat on Cedar Lake Road for birds like Blackburnian warblers, parula
warblers, least flycatchers, and northern goshawks.
Then on
to Powell Marsh, which we scoured until 12:30, the temperature now risen to
nearly 80°. Powell yielded our only migrating shorebirds for the day – least
sandpiper, semi-palmated sandpiper, semi-palmated plover, and lesser
yellowlegs. We also got a very late rough-legged hawk, and numerous bobolinks,
a personal favorite of Mary’s and mine because their song sounds somewhat like R2D2
from Star Wars fame.
And then
we ate breakfast, which had now become lunch, and not incidentally, we got
Baltimore orioles and purple finches at our home in Manitowish.
We worked
our way down to a site near Lake Tomahawk where Vanessa has done research on
golden-winged warblers, and there we found a suite of grassland birds that are
hard to find in the Northwoods except in clear-cut sites – Eastern towhee,
mourning warbler, and the golden-winged warblers.
We
continued birding along the Wisconsin River until 6:30, now having spent 14 ½
hours together. Vanessa and Mark headed home to Rhinelander where they picked
up an additional five species we hadn’t found yet, Guy found two more species
in Minocqua, and Mary and I found nighthawks and whip-poor-wills in abundance
at 9:30 that night near Boulder Junction.
We were
toast, but when all was said and done, we’d identified 117 species of birds, a fine
number given the relatively short distance we had traveled.
Other birdathons are still taking
place around the state, all joining forces with the Natural Resources
Foundation of Wisconsin, Wisconsin Bird Conservation Initiative, Wisconsin
Society for Ornithology, and Madison Audubon Society to raise $70,000 for bird
conservation.
Our goal was to see 110 bird species, which
we beat, and raise $3,000, which we’re still trying to get to. Funds we raise
will support nine statewide programs that meet the year-round needs of
Wisconsin’s birds. If one on your passions is birds, please help us help Wisconsin
birds by pledging or donating to the
Northern Highlands Team at www.wibirdathon.org. Click on “Donate,” go to the name of any member of
our team or to “Northern Highlands team,” and give what you can. The birds will
appreciate it.
The North Lakeland
Discovery Center also fielded a birdathon team yesterday, 5/26, so please
consider donating to their team as well. I’ll summarize their results in my
next column.
Sightings – FOYs
(First-Of-Year)
5/10: Our FOY white-crowned sparrows appeared in our yard
in Manitowish.
5/11: Our FOY Baltimore orioles arrived.
Baltimore oriole photo by Bev Engstrom |
5/12: A FOY brown thrasher appeared under one of our
feeders.
5/13: A reader sent me the story of his son in Minocqua who
“saw an eagle fly down on a flock of geese and pluck
a young gosling. The eagle returned twice more to snatch a gosling, all the
while the adults were honking up a storm.”
5/14: Patricia Bruhn in Woodruff sent photos of a black
bear on her deck and which also was eating her fuchsia flowers out of a pot – I
didn’t know they had such sophisticated tastes!
black bear eating fuchsias photo by Patricia Bruhn |
5/15: Dan Carney in Hazelhurst reported a FOY indigo
bunting. They’ve been slow to return, and I’ve not heard of many visiting
people’s feeders.
5/17: We finally had our FOY hummingbird visit our
feeders, a full week later than our average date. With the warm weather this
last week, they’ve settled in to their high speed attack wars at the feeders.
5/18: Dan Carney saw his FOY golden-winged warbler at his
little waterfall in his yard. These waterfall/pool set-ups can be purchased at
various stores and sure attract birds.
5/18: A Harris’s sparrow put in an appearance at our
feeders, but soon departed and never returned.
5/20: Sharon
Lintereur sent a wonderful picture from her property in Lake Tomahawk of
two barred owls peering out of their nest box.
barred owls photo by Sharon Lingerer |
5/21: Mary Madsen in Presque Isle had an Eastern
meadowlark visit her property. If we lived in farm country, this wouldn’t be
worth mentioning, but here in the Northwoods, a meadowlark is quite unusual.
5/23: Ron Eckstein, retired DNR wildlife manager for our
area, noted that the loon pair on Little Crooked Lake had abandoned their nest
due to overwhelming numbers of black flies. Ron later paddled over to look at
the nest, and as he approached it, a cloud of black flies rose from the nest
itself. I’m unaware if the black flies are an area-wide issue for loons this
year as they were in 2014 when 70% of first nest attempts were abandoned, but
it appears likely. Simulium annulus is the
species of black fly that only attacks common loons. The good news is that many
loons can and will successfully re-nest, though overall reproductive success is
diminished.
Celestial Events
Look for these planets continuing
their visibility from May into June after dark: Mars is visible in the south,
while Jupiter is bright in the southwest and Saturn can be seen in the
southeast. Before dawn, look for Mercury very low in the northeast – it will be
lost by mid-month.
By June 1, we’ll be up to 15 hours
and 30 minutes of daylight – nearly 65% of the day will be lit by the sun.
However, the days are now growing longer only by one minute, and the earliest
sunrises of the year begin on 6/10.