Wednesday, May 16, 2012 5:45am CDT
40 degrees F Clear Calm
It apparently has been a quiet night for our loons. Thank you to those who have kept watch all night.
Today also promises to be a quieter day for them with much less wind than they faced yesterday.
Shortly after 11 o'clock last night, repeated wails and tremolos from the nest signaled that something was upsetting the loon. It was the muskrat.
He decided to make a return visit to the nest but sat well out of reach of the loon. He sat only partially in the picture on the lower right hand side for about 3 minutes. With only part of his body showing, I could not see what he was doing. But the only thing there that might interest him is what little is left of the willow branches on that corner of the nesting platform that the beaver left after he gnawed them off a week or more ago.
As long as the muskrat was there, the loon was not a happy camper. Repeated wails and yodels reminded the muskrat, as if he needed reminding, that he was not welcome there.
But at least it was not the beaver or the raccoon.
The beaver concerns me much less than the raccoon. Raccoon are notorious egg predators and are responsible for the destruction of more shore-based loon nests than almost any other predator.
Someone asked me if we have mink on 'loon lake'.
The answer is yes. Although you rarely see them.
Amazingly I saw the first one that I have seen in years only a few weeks ago. The good folks from Broadband were here and we were working on installing new cable for you to see and hear the LoonCam. One of them said "What is that down by the lake?"
I turned to look and there was one of the biggest mink I have ever seen casually loping along the shore of the lake! Like I said, I know they are here but I had not seen one for many years and never one that large. Mink are also known as vicious predators and are also known to take loon eggs. They are also strong swimmers but as far as I know, one has never been seen around this nest.
We can only hope that all of them stay away!
This might be as good a time as any to review the different calls that loons make and the meaning is of each of those calls since there are so many new people now coming on to view the LoonCam, many for the first time. We welcome you!
Loons make four basic calls.
1. Wail 2. Tremolo 3. Yodel 4. Hoot
The Wail
This call is probably the most common call that people hear and is the call that many people think of when they think of loons. It is a long, undulating, mournful call. It stirs something deep within us and is so representative of being by a lake in the great wilderness areas of the north.
There is something so primeval about it and so haunting. Once you first hear that call echoing out over a northern lake, you never forget it.
Most of the time it is one loon simply trying to locate its partner. "I am here. Where are you?" Often you will hear the other loon answer from across the lake, "I am here. Where are you?"
The Tremolo
This call is an alarm call. Made by both the male and female loon, it is used when a loon is concerned about something. It is a call that signifies danger or distress. It may be an intruder loon in the area that is causing distress. It may be a boat or a canoe getting too close to the nest. It may be a predator. It may be an eagle overhead.
But something is causing the loon to be concerned.
Many times both loons will tremolo at the same time in response to some perceived danger.
Sometimes it has been referred to the 'crazy laughing call'. You can see why when you hear it.
The Yodel
This is the most extreme of the distress calls made by loons.
The yodel is ONLY made by the male loon.
So if you see a loon making a yodel call, you know you are looking at the male. It is one of the few ways that you can definitively tell which loon is the male.
This call is used many times by the male to establish their territory.
They will lower their head with their neck stretched out almost parallel to the surface of the lake as they rotate almost like an air-raid siren or a tornado warning siren and broadcast their yodel to anyone within hearing. It is a very loud call. And the yodel travels well over water, sometimes being heard miles away.
Here is a great picture by Gerrit Vyn showing a loon making the yodel call. http://cdn.c.photoshelter.com/img-get/I00009Rb6F2TplN4/s/650/Common-Loon-Vyn-100421-0062.jpg
The Hoot
This call is a very quiet call and one which few people ever hear. But you have heard it here on the LoonCam.
It is a call that is used when two adults are close to each other or when the parents are near the chicks.
I usually classify the calls as two "good" calls and two "bad" calls.
The tremolo and the yodel are calls that are made when the loon is upset or under stress. That is why I call them "bad" calls - although there really is no such thing as a bad call. It is simply part of their language. The wail and the hoot usually are used when a loon is usually not under stess and therefore are "good" calls.
You can hear good examples of all four calls here http://blog.syracuse.com/indepth/2008/07/audio_hear_the_calls_of_the_co.html
There are some variations of the calls that we can maybe talk about sometime but now you know the four basic loon calls.
And now you know what the loons are saying when you hear each of the calls.
I have to admit that I enjoyed all of the calls much more before I learned that the tremolo and the yodel were telling me that the loon was upset about something and was under stress.
But even knowing that, they are still beautiful.
And each time I hear them, I am sitting around a campfire at night at a campsite along a lakeshore in the wilderness of the Boundary Waters Canoe Area Wilderness. Or I am at a cabin on some northern lake.
They immediately bring back such wonderful memories of beauty and wilderness and all that is good in the world!
May they bring back wonderful memories for you as well.
Comments or Questions? LoonCam(at)yahoo(dot)com
Copyright 2012 Larry Backlund
Tuesday, May 15, 2012 5:20am CDT
59 degrees F Partly Cloudy Wind 3mph NW
Sunrise 5:42am Sunset 8:37pm
It is a reassuring sight to see the silhouette of the loon sitting on the nest.
The mate floats peacefully nearby.
Or is it the mate?
The last couple mornings I saw a loon nearby and thought it was the mate, only to have the loon on the nest leave and engage in excited diving with the other loon. And eventually the other loon left in a frantic flying/rowing motion as it tried to get away quickly from "our" loon.
Obviously it had been an intruder.
Two mornings ago the intruder loon had been sitting out beyond the buoys which mark off the area of the nest. All of a sudden he jumped straight up, very surprised. Immediately he began 'rowing' away as fast as he could sounding tremolo calls as he went.
Then another loon, 'our' loon, surfaced right where the other loon had been.
With the jump from the loon and his quick and excited exit from the area and our loon surfacing right at that spot, I think I had actually witnessed an attempted stabbing from below the water. There is no other explanation of why the loon jumped so much and then hurriedly and noisily left the area.
Loons will stab with their long and sharp beak. It is one of the few offensive weapons they have. And they can do serious damage with that beak.
One can only hope that if the raccoon from night before last returns, he will experience first-hand the tip of that beak and will decide that it is not worth his time or effort to swim all the way out to the nesting platform in the search of eggs. There were no reports last night from observers about a repeat visit by the raccoon.
The appearance of the raccoon on the nest is one of the more serious threats that I have seen. On land-based nests, raccoons are one of the largest dangers to loons and one of the greatest predators of loon eggs. If they are able to scare the loon off the nest, they will probably have an early morning breakfast of eggs.
Raccoons be vicious fighters.
For all their cuteness with that 'bandit mask' on their face, if they are cornered or threatened they can become very vicious. There are reports that a raccoon cornered by a dog is more than an even match for the dog.
Now that the raccoon has found the nesting platform, let us just hope that the loon does not spook and leave the nest and that if the raccoon returns, the loon is able to convince him to quickly leave with a little touch of that sharp beak applied to sensitive parts of the raccoons anatomy.
Today promises to be another "Minnesota Day". Partly cloudy blue skies, low humidity and temperatures in the mid 70s with gentle breezes.
Yesterday you may have seen the loon panting a lot on the nest.
This is very normal. The temperature here got up to 90 degrees yesterday! Panting for a loon is a way to control body temperature, just like a dog pants for the very same reason.
Loons are used to swimming in cool water. On a day when the sun beats down on them as they sit on the nest, they will pant to lower their body temperature. Having black plumage does not help in the hot sun. They will often leave the nest for a few minutes at a time to get in the water and cool off.
But today should not be quit as warm as it was yesterday so that should give the loons some relief as they sit on the nest. But even in relatively cool temperatures a loon will pant. It is very normal behavior.
Some people have been wondering about a 'tuft of feathers' on the loon that shows up on its side. They have wondered if it because of being in a fight with another loon or something else.
I do not think there is any cause for concern.
I remember seeing the same thing several years ago and being very concerned about it.
I had watched an eagle dive bomb one of our loons as if it was trying to take it.
In the next few days I became aware of a tuft of feathers just like this. For the longest time I was convinced that it was due to the close call with the eagle.
However, I have seen the very same thing many times since. It seems to be a normal part of loons. Without being able to closely examine a live loon, I cannot say for certain exactly what it is. But it does seem to be a normal tuft of feathers that are usually covered by the wing. But when the loon sits on the nest with its wings lowered around its body to protect the eggs, this tuft of feathers is exposed and blows around in the breeze.
So I do not think it is any cause for concern.
But someday, somehow, I would like to be able to examine a live loon to see exactly what that tuft of feathers is. And is it there all the time or just during certain times.
Once again, way more questions than there are answers.
Encourage your friends and family to join you in watching. The few days that we have this privilege every year are ever so fleeting. We have already passed the one week mark since the first egg was laid.
But just by being able to observe close up like we can on the LoonCam, we learn more and more every day about these beautiful birds.
These symbols of the great wilds of the north.
Comments or Questions? LoonCam(at)yahoo(dot)com
Copyright 2012 Larry Backlund
Monday, May 14, 2012 5:14am CDT
55 degrees F Clear Calm
Sunrise 5:43am Sunset 8:35pm
Birds sing their early morning song.
The first glimpses of light appear from the eastern horizon and silhouette a loon sitting on a nest on a quiet northern lake.
Faithfully keeping its charge of protecting eggs.
About 2am this morning, two faithful LoonCam watchers reported something that I have never seen before. And it is something that causes me great concern.
So far this year we have seen a beaver on the nest. The ever present muskrat. A Canada goose. A sandpiper.
But last night they reported seeing a raccoon on the nest!
Yes, you read that right. A RACCOON!
Two people said they saw the same thing. I am not sure if the loon left the nest but it did not sound like it.
The reason that is of such great concern is that raccoons are one of the greatest predators of loon eggs. With nests on shore, a raccoon will scare the loon off the nest and then devour the eggs.
That is one of the great advantages of a floating nesting platform like this - it discourages land based predators. It is also the reason that it is as far from shore as it is (150 feet), to discourage any land based predators from swimming out to it.
Raccoons are able swimmers but this is the first time that I know of that one has discovered this nest.
We can only hope that it is also the last time and that if he comes back, the loon is on the nest and gives him a sharp reminder of why he should not be there.
But it is something that causes me great concern, just the fact that he has found his way out to the nest.
Raccoons tend to be nocturnal so there is not much chance that we would see them out there during the day. But the night is their abode. Fortunately the loons are on the nest most of the night.
This one definitely demands close watching.
There also seem to be some continuing territorial issues with a single intruder loon. Over the past several days there have been a few confrontations and even a couple chases.
There is also one other 'creature' that you have seen on the night cam. In past years some have referred to them as 'fairies' flying around the nest.
It is an insect called a caddis fly. Fly fisherman know it well and may even time their trout fishing trips to coincide with the caddis fly hatch.
We have already talked about the mayfly hatch. We are still in the middle of the mayfly hatch even though it is starting to taper off I think. But we are also in the middle of the caddis fly hatch. They are a long winged insect that is lighter colored. There are over a thousand species of caddis flies.
Both mayflies and caddis flies provide a lot of food for fish and insect gathering birds.
Neither one of them bite humans and are only a nuisance because of their sheer numbers.
So today we wait to see what new adventures the day brings for our loons.
We definitely do not need another visit from Mr Raccoon.
Today promises to be another one of those patented Minnesota days. Temperatures in the low 80s. No humidity. Blue skies and 'sky tinted waters'. Fish jumping. Birds singing. And loons.
And all is well with the world.
Comments or Questions? LoonCam(at)yahoo(dot)com
Copyright 2012 Larry Backlund
Sunday, May 13, 2012 6:10 am CDT
42 degrees F Clear Calm
Sunrise 5:44am Sunset 8:34pm
It is a "Minnesota morning".
Cool. Clear. Crisp.
The first rays of the rising sun paint the shoreline of a northern lake.
Small wisps of steam rise off the water and drift across the surface in the early morning sun.
A loon sits on its nest.
Do things get much better than this?
These are the scenes that refresh the soul and restore one's faith in all that is good. These are the scenes that enfold and enrapture us and draw us in and hold us. These are the scenes that convince us to forget that there is an 'outside world' with problems. That draw us in hold us spellbound.
This is truly a "Minnesota morning".
The loons survived their first day of increased boat traffic on the lake due to the Minnesota "Fishing Opener".
Fortunately for them, on the first day of the fishing season, many people head even further north to lakes scattered across the state. But on a beautiful day, there was an increase in boat traffic.
I would expect the same today. The forecast is for temperatures in the mid-70s, blue sky, no chance of rain and mild breezes. Minnesotans tired of being winter bound are anxious to get out on their lakes. And no doubt they will do just that today.
There is an old saying among Minnesotans that "You can't really appreciate spring until you have endured a Minnesota winter." And on a day like this, that is especially true. We love all our seasons here in the "Theater of Seasons" but spring is such a special time of year as the frozen 'tundra' gives way to flowers and green and growth and new life. And LOONS!
Yesterday was a perfect illustration of how good and considerate most people really are.
Two young men in inflatable Sevylor kayaks came paddling by. They looked like they were identical twins. Tousled hair and slight beards. Maybe in their late teens or early twenties. They almost looked like a reflection of each other.
Fishing rods stuck up out of their kayaks. They obviously had been fishing the shoreline.
But as they came to the first buoys outlining the area around the loon nest (there are 11 buoys plus a swimming raft), they steered out around them.
You could tell they were fascinated by the nest and the loon on it. A loon now in severe 'hangover' at their presence. But they did not approach the nest but stayed outside the buoys and simply looked. And then they continued there paddling and went further down the shore.
Shortly after they had paddled by, I went down to finish mowing the front yard along the lake. Grass that was getting long enough to need a baler rather than a lawnmower.
Having watched the hangover of the loon in response to the kayakers, I watched carefully as I started mowing. The loon did not even flinch nor did he lower his head at all. It is amazing how accepting they can be of human activity around them.
For many years I had wondered if they can really recognize people because I see a difference if I go down by the lake versus if I have someone with me that the loons do not know. I was really thinking that I had let my imagination run too far. But then one year the neighbor said 'I am sure they know us.' I said thank you for saying that. I thought I was losing my mind.
I checked with a biologist at the University who specializes in waterfowl and he said he believed that they can recognize people. He said he sees the same thing with some of his research subjects.
So I felt better that I was not just making this stuff up in my own mind because I wanted it to be true.
But when I stop to think about it, if a loon can recognize and distinguish one loon from another, why could they not recognize certain people who they see often. I cannot tell the difference between two loons most of the time. But a loon sure can. It can tell its mate from a distance and never reacts when the mate comes swimming toward the nest. But let an 'intruder' come into the area and there is no doubt that the loon immediately recognizes that this is a different loon.
Also yesterday afternoon two men came by slowly in a very large power boat, driven by a small electric motor rather than the big engine, as they fished the shoreline and docks. Once again, when they saw the buoys around the nest, they respectfully steered well outside them. They even made several casts toward the swimming raft that marks part of the boundary around the nest. But they never approached the nest.
They too also obviously knew what it was as they pointed at it and talked among themselves.
But the loon never even lowered its head in response to them.
It is an illustration once again of something that I at times hate to admit.
I am an avid canoeist. I love canoeing in the Boundary Waters Canoe Area.
Those of us who are canoers and kayakers are sometimes self-righteously smug.
We would never say it out loud but deep down we think we are so much better than people who use big boats and big motors (which I also like by the way). We think we are so much more 'nature friendly' than those 'other people'.
But then watching the loons tells me something different.
The loons will react to a canoe or kayak much quicker usually than they will to a power boat.
I think it is partly because a canoe or kayak is slower and spends more time in the area. But with a canoe, we also can get into areas that a power boat would not go. And we tend to be more inquisitive when we see something that catches our attention. We tend to paddle right up to it.
So when I see the reaction of the loons, it is always a reminder not to be too quick to judge others.
One of the beauty of Minnesota's 10,000 lakes is that they are open to everyone. And they get used heavily.
But that always creates tensions.
In some ways, we would love to prohibit anyone from using a lake and leave them to the loons.
But that is not practical and it is not reality.
I can put the buoys around the nest to try to remind people to keep a respectable distance. But people have the right to use the lake as well. You cannot cordon off the whole lake. You cannot prevent people from making use of it.
So it becomes a matter of education more than anything else. Of teaching people to simply be aware of what is around them and then to watch the wildlife but watch from a distance.
I am so grateful to the wonderful neighbors who consent to having the loon nest here. And they purposely limit how much they do on the lake while the loons are on the nest. If that ever changes, that would necessarily be the end of the LoonCam. So I am eternally grateful to them.
Someone asked if I got out fishing yesterday. The short answer is no. While the loons are on the nest, I cannot take the canoe or boat out nor can we go swimming (although it is still a little too early for comfortable swimming). But it is a small price to pay for a couple months to see and help these spectacular birds. The Minnesota State Bird.
And to give you a chance to see them "up close and personal" through the LoonCam. Something none of us could do in any other way.
Today, HAPPY MOTHER'S DAY!
And we hope that in a few weeks our loon will be celebrating her own "mother's day" with two new baby loons.
Comments or Questions? LoonCam(at)yahoo(dot)com
Copyright 2012 Larry Backlund

