Wednesday, May 5, 2010 5:25pm CDT

54 degrees  Partly cloudy   Still windy
 
You may have just heard the loons calling and I assume the loon on the nest DOVE off the nest...I didn't see it because I was outside.  But with what just happened, I assume she made a pretty hasty exit from the nest!
 
Here is what was going on outside of your view on the cam ....
 
I heard the loons alarm calling and came around the house to see what was disturbing them.  It was then that I saw that she was off the nest.  And it was then that I saw what was disturbing them! 
 
And what was disturbing them was an eagle!
 
It was an immature eagle that at first I thought was  targeting the nest...because he was hovering right over it.
 
But it soon became apparent that he was fishing and not targeting the nest.
 
He was watching the surface of the water and hovering.  Then he would move a little bit and hover.
 
At one point it looked like he dove on one of the loons that was swimming and calling below him!
 
The loons were out in the lake some distance by now and they were calling....obviously trying to distract him.  But his mind was on fish and his mind was on a meal.
 
He kept moving and then hovering.
  
Finally he dove and with his talons grabbed something.  I could not see exactly what it was but he had something in the firm piercing fatal grip of his talons.
 
Then he flew back over the nest [the loons did not like that at all!] and he landed on my dock with his catch!!  Only then could I see what he had caught.  He was clutching a bullhead in his claws and began tearing it apart and eating it.
 
It did not take him more than a couple minutes to completely devour it.  As he came to the end of his meal, a crow landed on the dock only a few feet away from him to see if it could steal any scraps!  BRAVE crow!
 
I stood and watched because I did not want him to think that he had an easy meal of fish and loon eggs.  When he took off he flew right over the nest.  I was ready to run down to scare him away if he tried to swoop down on the nest.  The loons seeing him once again over the nest started calling once more!  But he kept moving and kept looking for more fish and finally flew away!
 
So our loons have had their first encounter with an eagle since they laid the egg and everything seems to be ok.  The loon should be back and on the nest in a few minutes
 
Loons HATE eagles.  I "hate" to use a term like 'hate' when it comes to ascribing feelings to animals.  But in this case I think it fits.  Loons hate eagles.  Probably more than any other threat.
 
Now if the eagle wants to come back and take....oh, let's say....a MUSKRAT!  That is ok with me!!!
 
But for now, the loons are ok.  And just as importantly the egg is ok.

Wednesday, May 5, 2010 9:10am CDT

 

49 degrees   Mostly Cloudy   Wind SW 20 mph

 

It is a chilly windy cloudy spring day in Minnesota with temperatures only forecast to reach the low 50s.  There is only a slight chance of rain today.  But the forecast for the whole central part of the country for the next few days is for it to be quite cool.

Several times I have written the words that I am about to say only to discard them!

Let me go out on a limb!!

The female is sitting on the nest now.  That is nothing new.

But there is a difference in the way she is sitting.  Small subtle changes that are so easy to miss.

Could it POSSIBLY be that we are getting close to an egg being laid?!!  Or is it too much to hope for?

Stay tuned!

Tuesday, May 4, 2010 6:38pm

 

59 degrees   Mostly Cloudy   Wind W15mph

 

The sky has clouded over.  The wind has picked up.  And there are small scattered showers roaming about.  But there is not supposed to be anything severe.

There are big whitecaps out on the main part of the lake but the nest is a little bit sheltered so there are no whitecaps around the nest.  But from what you are hearing of the wind on the microphone, I am sure that some of you think that this is a old fashioned Nor'Easter!!

But it is not near as bad as it sounds on the microphone.  It just depends how the wind hits it.  Sometimes I have to turn the speaker off in the house...the sound of it makes me cold.  Even though it isn't really cold.  In fact it got up to 84 degrees here today.  But over the next several days it is supposed to be much cooler.

I know that all of us have our hopes up each time the loon is up on the nest.  Me too!  Every time it is  "Will THIS be the time she lays an egg?!!"  But once again she has gotten off the nest  This is the fourth time she has been on the nest in the last hour or so.  One of these times!

Some of you have been asking some questions.  Let me try to briefly answer a few of them.

Mate for life?  The accepted wisdom for year has been that loons mate for life.  And for the most part that is true.  However recent research indicates that they will sometimes switch mates.  If they lose a mate or the mate dies, then almost for sure they will find a new mate.  Some of the other possibilities are that if a nest is not successful, there is some thought that they might switch mates.  Or is a stronger male comes along they might switch mates.  And there is some evidence to say that a male may be strongly attached to territory as well as to a mate.  But it general, it is still felt that most loons mate for life unless something else happens.

Life Span?  Loons are very long-lived birds..especially compared to other birds.  No one knows for sure how long they can live but at least 25 to 30 years seems to be the norm.

Eggs?  Loons normally lay 2 eggs.  Sometimes one.  And rarely three.  There is one report in research of a loon that had 4 eggs but that is VERY rare!  The eggs are very large and make up 3 to 4% of body weight so it takes a lot of energy to produce them.  The eggs weigh about 5 ounces!

The second egg is usually laid within 1 to 3 days of the first egg.

Head Motion?  Someone mentioned see them tossing their head back like they were swallowing a fish.  It could be a fish.  But the times I have seen them do it they have been brushing off black flies!  That is an AMAZING story and fact that we will talk about sometime, too!

What does all the mating mean?   I honestly do not know.  This is more mating than I have seen in any of the years of doing this.  And there is not a lot of research available because most people never get this view let alone this view for such an extended period of time!  You are seeing things that most researchers even a few years ago would have given anything to be able to see!

What is the nest made of?  The nest is made of plant materials that a loon would find washed up on shore and also cattails which would grow in many of the places where they would make their nest.  Someone wondered if there was enough material for her since she kept pulling at one piece.  There is MORE than enough material for them!!  Like orders of magnitude MORE material than they would ever have available in a 'natural' nest.  So there is no shortage.  At some point, I will try to go into more detail about the nest, the materials and the nesting platform.

Are these the same loons as previous years?  There is no way to know for sure since these loons are not banded.  [That is one of the many projects that I would like to do but amazingly Minnesota does not have anyone who is qualified to band loons.]  But without the proof of banding, I am still 98% sure it is the same pair.  How can I be so certain?  For the last 4 years the loons have come in and swam around the EXACT place where the nest has been each year.  There is NO reason for them to come to that spot unless they remembered the nest from previous years!

You will however remember that one of the first blog entries that I made this year, I talked about one of the most extended chases that I had ever seen in a battle for territory.  I keep wondering who won that fight and whether or not this actually IS the same pair.  I have also mentioned that there has been another pair on the lake and that there has been extensive yodeling [a territorial call that we will talk about when we talk about calls] in the middle of the night.  That indicates a battle for territory.

Why hasn't she laid an egg yet?  I don't know.  lol  While I keep wishing and hoping every time she is on the nest that she will lay an egg, it certainly is NOT time to despair yet.  Several years in the past she has laid eggs later than this.  But we all get impatient for her to get on with it.  Including me!  But she will decide when the egg is ready, not us.  Is it possible that she will not lay eggs this year?  Yes, anything is possible.  But if she does not, it will be the first time in 8 years that the loons using this nest have not successfully laid eggs.  That is an amazing track record!

Won't the 'bright lights' on the nest for the night vision scare her?  No, they are not bright lights.  In fact you can hardly see them at all.  They are infrared lights.  I will also talk more about that when I go into more detail about the nest.  And also about an experience I had the first year we did the webcam!  My only question is if loons can see infrared light and I have not been able to find any research to confirm that either way.  I do not think it is going to be a problem or we would not have done the night vision.  There is another loon nest out east that used infrared with seemingly no reaction from the loons.

Well, there are so many MORE questions to be answered and I will try to do so as we go along.  You can post them here or you can also send them to LoonCam@yahoo.com and I will try to answer the questions here in this blog.  Unfortunately when we are in the midst of them nesting, there get to be too many emails for me to answer personally.  But I WILL read all of them and answer as many questions as I can.

But so many of you who have been viewing have become 'loon experts' in your own right so you can help each other out!

Tuesday, May 4, 2010 8:46am CDT

 

48 degrees   Partly Cloudy  Wind SE 9mph

 

On a quiet northern lake in Minnesota, both of our loons are sleeping.

They  both have been floating not too far from the nest, their heads turned back with their beaks tucked under their wings....sleeping!  They have been this way for the last 10 minutes or more.  

Seldom have I seen both of them sleeping at the same time or sleeping for so long.

Obviously they are calm and comfortable.

It is an amazing and wonderful sight to see these two magnificent birds so unconcerned.  So relaxed.  So beautiful floating on a sky blue northern lake.

As several of you already noted, they already mated yet one more time on the nest early this morning.  This is more matings than I have seen in previous years.  I do not know if that is a good or a bad sign.

It was quite a roller coaster ride of emotions yesterday afternoon, wasn't it.

Every time she got on the nest, I think it was on everyone's mind....'is THIS the time'?!

There were at least three times where I noted small subtle differences in how she was acting that made me believe that we were close to an egg laying.  But nope, each time she got back in the water without leaving an egg in the nest.

So we wait.  And hope.

We observe the reality of nature.

Only in this case, we are 'participants'!

Usually all of this goes on without us ever even being aware that something is happening.  We blithely go about our day without a clue or a second thought of all the miracles and dramas that are playing out right under our noses.  Without us ever seeing or noticing or even caring.

But as you have seen with your own reactions to her laying an egg, this very quickly becomes personal and emotional when you are able to see "up close and personal" what is happening.

Will today be the day?

It is something that we cannot control.  We cannot MAKE it happen.  We can only watch and hope.

And before anyone becomes too concerned, they have laid that first egg well into May several years.

So we are not yet at the point of great concern.  You may be just at the point of 'concern' and wondering.  But there is still a LOT of hope that our loons will raise yet another pair of chicks.  This particular nest has been much more successful than most.  They have nested and laid eggs every year for the last 8 years.  Most nesting platforms are used less than 50% of the time.  So we have been very fortunate!

And even when loons lay eggs, on average they raise only 0.62 chicks per year.  So by either of those standards, this particular nest has been spectacularly successful!

So once again today enjoy what you see and hear.  Take your heart medicine.  Get a cup of coffee and sick back and relax as you enjoy the WONDER of what you are watching!