Wednesday, May 13, 2015 5:14 am CDT

39 degrees F   Cloudy     Wind Calm

Sunrise   5:45 am CDT     Sunset   8:34 pm CDT

The first light of morning appears and our loon is already awake and looking around.

The morning song of so many birds fills the air.

Little zephyrs of breeze move around but are barely enough to stir the surface of the water.

All is peaceful.

Last night a number of people viewing just as it was getting dark, heard the male loon on the nest call and quickly leave the nest just as the reflection of some large bird was visible in the calm surface of the lake as it flew very low over the nest.

The way the loon reacted, I assume it was a bald eagle.

But when I went and looked, I could not see an eagle in the area or in one of the neighboring trees.  But it was getting so dark it was hard to see.

It could have also been a great blue heron.  But loons normally do not react to them in the panicked way that the male loon reacted to whatever flew over.  We have a number of great blue herons who regularly walk the shoreline looking for fish and frogs.

When they are surprised, herons take off with a loud croaking sound.

It is amazing to me how loons can distinguish an eagle from almost all other birds.

I have watched ospreys and herons and crows fly over and the loons hardly pay attention to them.

But let an eagle fly over and the loons loudly express their concern.

They innately seem to know from thousands of years of experience that eagles are one of the few birds that pose a threat to them or their chicks.

I have watched eagles chase our loons off the nest and then repeatedly dive on them and chase them all the way across the lake.

That happened a number of years ago on one very cold and windy and rainy morning.

The eagle chased the loon all the way across the lake as the loon dove for cover over and over.  Each time it came up, the eagle would dive on it.  Again and again.

During the time the loon was off the nest, three very large waves washed over the nest and filled the nest bowl with ice cold water.

I knew we had lost the eggs.

But if I remember right, miraculously one of the eggs actually hatched.  However, the other egg did not.

When we x-rayed it later, there was a chick inside that had been developing.  But its development had stopped about the time that the wave had covered it with cold water.

On three different occasions through the years, I have heard the loons calling and have gone to look to see what was disturbing them.

There were no people nearby.

No boats.  No canoes.  No eagles.

But they kept calling.

Then when I looked straight up, high in the sky above me was not much more than a black dot.

I had to strain my eyes to even make it out.

But there was an eagle circling high overheard.

How the loons could even see the eagle was amazing.  Let alone know that it was an eagle and not some other bird.

But distinguish it they did.  And they knew that it was something that was a danger not only to their nest but to them as well.  Eagles are one of the few if not the only avian predator that is large enough to even try to take an adult loon.

And loons know it.

Loons are one of the oldest of the bird species.  Some say they go back 65 million years.  Almost to the time of the dinosaurs.

They have had a lot of time to figure out who is their enemy and who is not!

So today, let's hope for bluebirds and herons.  

And no eagle attacks.

If you have any comments or questions, you can either comment here or at LoonCam at yahoo.com.   Because of the number of emails, I am not able to answer each one personally.  But I do eventually read all of them.  And if there is a question that a number of people have, I try to answer it at some point here in the blog.

The weather is supposed to be warming over the next several days.  Back closer to normal May temperatures.  Maybe even 80 by Saturday.

But there is supposed to be more rain tomorrow and scattered thunderstorms over the next few days.  

We can use the rain and the loons do not mind the rain at all.

They are not predicting any severe weather at this point.

So let's hope for blue birds, blue sky, gentle breezes.

And loons on the nest!

Copyright 2015     Larry R Backlund

Tuesday, May 12, 2015 2:12 pm CDT

57 degrees   Mostly Cloudy   Win 12 mph NW

Sunrise   5:47 am CDT    Sunset   8:33 pm CDT

It is a cold windy day here in Minnesota.

We did not have frost here but it did get down to 37 degrees this morning.  The weather should continue to warm over the next few days.  More rain is predicted for Thursday evening and then again on Sunday.

There are whitecaps on the lake that are bouncing our loons around whether they are  on the nest or off.

But they take it all in stride. 

Whether they are on the nest or not, they would be bouncing on the waves.  Obviously they don't need Dramamine nor do they get seasick.  It is just their world.

The loons just did their nest exchange a few minutes ago.

They are getting MUCH better at it and making the exchange smoothly.  The female is getting more and more comfortable on the nest and not ready to leave at the slightest provocation as she did last year.  She is still more ill at ease than the male but she is coming along rapidly.

She just spent the last 7 hours and 37 minutes on the nest!

That has to be a record for her.  If you had told me even a couple weeks ago that she  would do that, I probably would not have believed you.  And the male spent 17 hours on the nest Sunday and Monday.

Once again, you learn new things every day.

I think these are the longest shifts that I have ever seen.  But then in previous years without the loons being banded, it was hard to tell who was on the nest and for how long.  But it seemed that most of the time I have been watching loons they seemed to do a nest exchange every few hours, not these long long shifts on the nest.

Once again we are seeing things and learning things that would have been impossible in any other way.

What really surprised me this afternoon was that the neighbor mowed their front lawn with a big riding mower and it did not seem to overly concern the female.

I thought 'this will be interesting to see how she reacts'.  

And she barely reacted at all!

She went into a slight hangover once in a while.  But very little.  I was surprised.  And I wondered to myself if maybe it was the male on the nest and I had missed the exchange.  But no, it was the female who is getting more and more comfortable with her duties.

The neighbors are as concerned about the loons as much as I am.  Or more.  So I knew that if the mowing bothered the loons they would stop.

But the female loon was perfectly ok with it.

I am very encouraged by the apparent maturing of this female.

I have not been able to get over to where the other pair of loons on the lake has nested the last few years for a couple weeks.  With our loons here, I am "landlocked".  But when I checked a couple weeks ago, I did not see any sign that they were trying to nest at that point.  Hopefully they will nest again either at their old site or a new one.

I have not heard nearly as many territorial battles so hopefully territories have been all settled.

One of the reasons I hope that pair has chicks this year is that they were banded and fit with geolocater tags in 2012.  We were not able to capture them last year to retrieve their geolocaters because they lost their chick.  We tried to capture them but were not able to do it.

So if we can capture them and retrieve the data recorder, it will add much more knowledge about loons.  Where they go and what they do.

There is (or was) still an 'intruder loon' on the lake.  A couple mornings ago, our loon was drawn off the nest as they 'did battle' with the intruder.  I did not see it but one of the neighbors said they did.  Apparently it was a fairly short and mild battle.

So our loons continue to face challenges.  Even if we do not see them on the LoonCam and they take place elsewhere.

But today I will hold onto how well our female has been settling into her role.

I am very pleased and happy.

It bodes well for the future of this nest and our little future chicks.

Copyright   2015     Larry R Backlund

Monday, May 11, 2015 5:56am CDT

47 degrees F     Scattered Rain     Wind 3 mpg NE

Sunrise   5:48 am CDT     Sunset   8:32 pm CDT

We have just had our morning nest exchange.

The female loon has come in and taken over nesting duties and the male has left.

He has been on the nest since 12:42 pm yesterday - a total of 17 HOURS 11  minutes!

That has to be some kind of a record.  Although it has undoubtedly happened somewhere, sometime before, that is the longest I have ever seen a loon stay on the nest at one stretch.

This pair is getting their nest exchanges down to a routine better and better and is doing them more smoothly.

It takes the female a few tries to get the eggs placed just right.  She adjusts them with her beak and  eventually she gets them in just the right spot and settles down on the eggs to keep them warm in the chilly spring morning air.  Rain continues off and on.

A light breeze blows across the nest and our loon.

Loons roll the eggs to get them in just the right spot near the back of their bodies between their legs.

Most birds have what is called a "brood patch".

A brood patch is an area on the birds breast that either does not have any feathers, or has few feathers.  This allows the bird to put that area of bare skin up against the eggs so that it can transfer body warmth to the eggs more efficiently.

Loons do not have this bare skin "brood patch".

Instead they have an area back toward their legs that has a higher than average number of blood vessels.  It is this area where the loon tries to position the eggs so that they can transfer body warmth to the eggs.

So that is why you see them roll the eggs with their beak, trying to get them positioned just perfectly in that 'magic spot'.

When they have them in the right spot, they will settle down on the egg, wiggle and waddle as they nestle the egg against this spot with all the extra blood vessels.

Then watch them do something else.

Once they have settled their body on the eggs, moved their legs, wiggled their rear end back and forth to get the eggs positioned at just the right spot, they will carefully tuck their wing tips down along the nest.  They will cross the wing tips to seal up the space around the eggs so that no cold air can get to the eggs.

And then as a final step, they will lower their tail down over the wing tips to lock everything in place!

It is almost the loon's version of a Thermos bottle!

The eggs are now securely protected from the cold air as the loon transfers heat from their body to help the little chicks in the eggs develop and grow.

One of so many small miracles that our loons do every day.

So now we watch the clock and the calendar for the next 3 weeks or more.

Waiting for what will hopefully be 2 little  black downy balls to emerge from the eggs.  Our loon chicks.  So full of life!

And so full of "cute"!

Copyright 2015 Larry R Backlund

Mother's Day Sunday, May 10, 2015 6:14 pm CDT

50 degrees     Rain     Wind 8 mph NE

Sunrise   5:49 am CDT     Sunset   8:30 pm CDT

Today has been a chilly rainy day, with more predicted over the next few days.

The forecast is predicting that we may get an inch or two of rain in the next couple days.  That moisture will be very welcome.  The plants on the nest have already started to perk up from some of the rain that we have already had.  They had been looking pretty bleak.

But we will take this rain compared to the heavy snow in the Black Hills and Denver, the tornadoes in Texas or the tropical storms in the Carolinas.  (Although the forecasters have said that we should not be surprised to maybe see 'a flake or two of snow' by Tuesday morning!)

The average date of the last frost in the Twin Cities is today, May 10th.  Here at "Loon Lake", it is closer to May 20th.  So it is still possible to get frost and too early to put out tender plants.  In fact my father used to talk about he remembered seeing snow flurries on the Fourth of July one year!

If we had temperatures in the 50s back in January, we Minnesotans would be out sitting in our lawn chairs wearing shorts.  Now we are bundled up like Floridians!  Compared to the sun and warmth of a few days ago, it feels cold.  Just another act in the Theater of Seasons.

But the loons are more comfortable in this kind of weather than in the heat or  hot sun beating down on them.

This pair of loons really seems to be maturing.

The female has been less likely to bolt off the nest at the slightest thing.  And the nest exchanges have been much more smooth than in the past.  And the loons have been very faithful in incubating those precious eggs.

The conventional wisdom and belief is that it takes 28 days for the eggs to incubate.  Some estimates have even gone as high as 32 days, although I personally believe that is way too long.

Through the miracle of the LoonCam and by being able to know exactly when eggs were laid and to know within a few hours of when the chicks hatch, we have been rewriting the conventional wisdom of what has been believed about loons.  Not only on incubation time but a number of other things as well.

We have consistently seen hatches that have been less than 28 days.

IF I had to make a prediction, I would predict that we will see a hatch of these eggs somewhere the last day or two of May or the first day or two of June.  Even more precise, I would predict hatching on Sunday, May 31 and/or Monday, June 1.  But that is a very long and tenuous limb I am on out on with that prediction.

Once again we can only watch and wait.

We are not in control.

Something or some One much bigger than us are in control.

Enjoy the drama of watching and waiting for our little chicks.  And all the drama and twists and turns that inevitably will come in the meantime.

Copyright 2015     Larry R Backlund

Saturday, May 9, 2015 4:26 pm CDT

69 degrees     Clear and Sunny     Wind 8 mph NE

Sunrise   5:51 am CDT     Sunset   8:29 pm CDT

It is a beautiful day here for the Fishing Opener.

Warm sun.  Blue skies. And just enough wind to create a 'walleye chop'.

Fortunately for our loons today, it is pretty quiet on the lake.  I counted only about  a dozen boats a little while ago.  Many fishermen tend to go further north or to bigger lakes on the Opener.

Like I mentioned, the Governor's fishing party went to Lake Vermilion this year.  Lake Vermilion is not very far from the Canadian border.

Lake Mille Lacs is another very heavily used lake, not only on the Opener but all year.  Fishermen have a lot of choices.  10,000 or more!

All of that is good for our loons if there isn't a lot of boat traffic or people wanting to get close to see the loons.

There is an eagle fishing very close by right now though.

And that has concerned the loons.

I watched the eagle circling very close by.  The female on the nest lowered her head several times.  And the male called from out on the lake.

But this time  the eagle was not looking for loons.  It had spotted a fish.

It circled and cirlcled.  It was a mature eagle with the white head and the white tail gleaming in the bright sunshine.

It lowered its legs and talons several times.

Then when the time was just right, it lowered its talons once again and swooped in for the kill.  

He rose up with a fish in his grasp and flew to a nearby tree where he is eating the fish right now.  It looked like it might have been a bullhead.  He can have all of those that he wants to take.That tree where he is eating is not all that far from the nest and where he caught the fish was even closer.

There are two fishermen in a boat that were VERY close to where the eagle swooped down and caught the fish.  I would like to know what they thought or said.  Because they had a front row seat to all the action.

I am very surprised that the female loon did not spook and leave the nest.  She must be getting more mature and comfortable, which is VERY good.

I have watched a couple of nest exchanges today and she is getting much better at them as well.  All of it is hopeful signs that we might have a successful hatch this year.

There is a long way to go yet.  We are only into the first few days.

So a lot remains to be written of the 2015 Book of Loons.

But you will see it LIVE as it happens.

What could be better?!

Copyright  2015      Larry R Backlund