Distressing issue….

 I have so many stories to tell, so many experiences to share…I can never get around to them all. Here is one more for you. This is a nest that popped up this year on a power pole near a big power plant. In those early days of watching them I thought….my that female has such unusual markings…..such a dark face. And then her mate landed next to her and I thought, how odd….he has very dark markings too! Then suddenly my brain exploded and I understood….this power plant processes coal. This birds are covered in coal dust. I was horrified. If this is what their faces look like, what is happening to their lungs? This coal dust does not wash off in the rain or when they bathe. I have been deeply worried about the two chicks…..but I am relieved to report that they both fledged successfully. So I am hoping they will begin to spend time further away from the coal piles, in safer surroundings. The chicks don’t look as bad as the adults. I hope the power plant removes this nest and this pair will find a better place to nest next year….tho I won’t recognize them probably!

Missing old friend….

 I had a very exciting morning today….there is a lovely banded male who nested on a cell tower for the past five years, and sadly his nest was removed and the tower was altered so he could not rebuild there this year. I searched for him and found him a short distance away in other cell tower. He and his mate were there dropping a few sticks. When I visited again, no real progress had been made and the female was gone. I watched the male just sitting there. The next time I visited, there were no ospreys at all. I searched for him at least three times this summer to no avail. I was very fond of this banded male….he also has a brother who is nesting about 8-10 miles away. I knew he had to be around and I also know that ospreys are very philopatric….loyal to their nesting territories. As I headed out this morning I thought, I will do one more search, extending a bit further south. I checked cell towers, transmission towers, a previous nest site of his…and found nothing. I went back to the cell tower where I last saw him…no one there. As I was driving away I saw an osprey flying across the road with a stick….I quickly turned around and got myself focused on the cell tower as he landed….IT WAS HIM! I was so happy! He is alone, but now he is doing some work on building a nest on that cell tower. I don’t know why he didn’t do it earlier….but I wonder if they nested somewhere else and failed. I just don’t know….but finding him again made me very happy. I will recheck to see how the nest is going and I hope his female comes back too. He is a great parent who has fledged chicks every year except this one. It’s funny how attached you can get to these banded birds when you watch them year after year. Gosh, that made my day….

Confirming successful fledging….

 Crazy busy weekend….frantically trying to gather data on successful fledging….that means visiting nests and watching for a while to try to account for all chicks right after fledge. It’s not easy, it can be time consuming. Many people don’t understand the value of this info….it determines if a nest is successful or not, it also determines the number of chicks that we record for the overall totals. My mentor, Sergej Postupalsky, wrote a paper about terms and methodology that is still very much a guiding light for me. It’s important that we discern the various causes for failure and what constitutes success. I had a boss that wanted us to consider the number of chicks we banded at 4.5-5 weeks of age as the final number. Sergej strongly disagreed with that since at that age the chicks are only about half way thru their development….and many won’t fledge until they are close to 8 weeks old. There are a lot of losses in those weeks, so an earlier number is falsely exaggerated, and slants the data. So I try very hard to get a number of chicks right before fledging age….and then confirm the number of chicks that we know fledged successfully. That does not mean they flew away….since osprey chicks are dependent upon their parents for food for several weeks or a month post fledge. So we are looking for chicks that have flown, landed safely somewhere and are returning to the nest to be fed. This is not easy. I am working very, VERY hard to get this data. Sometimes I just don’t get back soon enough after fledge to find them all and see that they are being fed. With well over 200 nests now, it’s becoming an impossible task without more help.

But I am making the rounds and doing my best. I visited two nests yesterday where I had seen no chicks on the nest, which worried me…..I could not find them anywhere. And upon this return visit…Boom! One by one they returned to the nest!! Some photos below of those nests with three chicks each. I also went to another nest where I had seen all three fledged last week and sadly, the nest was empty….but I thought, it’s ok. Then I heard this very loud foodbegging….and I looked up and a chick was right above my car! I slowly mover around to take a photo….but my scope almost couldnt zoom out enough to fit her in the frame….she was so close! And so tolerant. I laughed……food begging with a fish in her talons!

I call these gatherings of all chicks “the morning meeting” ….and it got a bit testy at the first one!

What a beauty….

 After the rain today I did step out to visit a few nests…

It’s been so frustrating, with so many nests to check, when I visit and the chicks are getting close to fledge…..and then I return 9 days later and they are gone. I cant find a single one of the family. I searched and waited….even found a new nest, or start of a nest, or maybe something this pair had started previously. I didn’t hear any chicks, tho I finally found the male on another celltower. I will have to try again, and sometimes I have to accept that with this many nests, some will fall thru the cracks and I won’t have definite final outcomes. I know those chicks made it to fledging age. I just can’t get back to them soon enough. We are also searching for missing chicks post fledge on many nests….and sadly, I found another dead chick in a nest.

I also visited a nest that had three chicks but all of them disappeared much earlier in the season. I don’t know the cause, but I suspect predation. Since then I had not seen the adults and that worried me…but yesterday I found them both perched side by side , each eating a fish. The male is banded. It was a relief to know that they are both ok.

So after a disappointing few days…I went to another nest that I had been to 9 days earlier. That solo chick was starting to hop and flap then, and today when I arrived there, I could not find a single osprey. I searched all around the area, and then just sat there waiting….hoping….and when I looked up from my field book….this stunningly beautiful chick was perched on a nearby celltower. I was so happy to see him. Somehow, when you watch chicks in a nest, you don’t always see all of them, you don’t notice all the spectacular markings….and when they have fledged and are perching in the open….boy it can take my breath away! I saw no adults, but I am sure his dad is around. But some females are starting their trips to the spa….as they begin to build up their strength, their muscle mass, their hunting skills, to prepare for the big trip ahead. On a nest with a single chick, this leaves the chick alone a lot. It often seems that on larger brood nests, the chicks fly around together, they have someone to play with, someone to compete with. But on the other hand, single chicks get all the food! Anyway, this nest is one of my favorites….tho we lost the long time banded male several years ago. The new male has been a devoted mate and Dad. I think it’s the same female, tho she is unbanded. So it lifted me up to see this spectacular male chick, with a totally white breast, perched up there in the late afternoon light. What a beauty. He made my day!

The new male returned….

 Yet another interesting day where I don’t get as much done as I planned. I stopped at the single females nest…..no one was there. No one was perched in any of the usual places. I heard nothing, I searched and waited for an hour…..starting to get worried. Then as I was about to leave I saw an osprey on a water tower nearby…..I scope it and it was that handsome new male, eating a fish. Suddenly he chirps and flies towards the nest….but another osprey was flying towards the nest too and they both had a fish. They both landed…..it was Mom and the new male. But no chick. They stood there next to each other….no aggression….and then the male went off to a light pole nearby. Mom waited, looked in all directions…..she did not eat her fish. She kept looking for her daughter. After a few minutes she flew off with the fish towards the lake across the street. She flew a loop and then headed back to the nest, followed be her screaming offspring! She rounded up the kid. Then she started feeding the chick….but before long the chick said, I can do it myself and grabbed the fish from mom. Mom said OK. The chick ate. Mom watched. Then the male came to the nest with his fish! He dropped it and left. The chick looked at it and thought it was a better fish, or at least a bigger fish, and dropped the one she was eating and grabbed the one the male dropped. Then mom took the remains of the chicks fish and they both ate. Wow. So this wonderful new male is still around. He is bringing the fish to the Mom as a courtship offering. But the chick is benefiting. This is only the second time I have seen him, but that means he wasn t just passing thru….he is hanging around. He is a good hunter and always has a large fish. There is no aggression between him and the female. I am feeling kind of hopeful…..that they may be establishing the beginning of some sort of bond, and that if they both survive migration, maybe next year she will have a real mate. If this new male begins to think of this as his territory, he may be willing to fight off the polygynous male down the road. It’s still tenuous….but seeing him bring a fish for the second time certainly is a good sign. And little miss muffet is also doing well. Boy that was fun to watch

Parental care….

 I have been SO busy that I have been saving up a bunch of posts that I wanted to share with you all. These days, when chicks are fledging, are among the most important and I have to devote myself to watching them and gathering the data before we run out of time. So answering emails and writing posts have sort of taken a back seat….and I am working long hours during super hot weather….and well, one person can only do so much. So my focus has been on fieldwork, collecting the data.

Anyway….as chicks fledge I keep observing these behaviors from the adults that really touch my heart and show how deeply they care about the welfare of their offspring. A recent newspaper article here in MN claimed that osprey adults swoop down on the chicks and try to get them to fledge, to leave the nest. This is completely untrue. Osprey chicks fledge when they are physiologically able to. It is related to when the blood recedes in the feather shaft, causing the feathers to stiffen and become capable of sustaining flight. Osprey parents would never try to force their chicks to fledge before they are ready. They fly, with no encouragement or stimulation from the parents, when they are ready. One of the endearing things I have seen at many nests recently is how, when the chicks first fledge, and often land awkwardly somewhere, I see an adult go and perch very near them. There is nothing they can do to help the youngsters, but they can offer some protection from a predator….and it seems like moral support! I was at one nest, over a week ago now, where there had been two chicks on the nest and when I stopped to check….nest was totally empty. This is a nest on ballfield lights. No adults were seen and no chicks were perching on other lightpoles. I was concerned, so I drove all around the area….went down a road that goes behind this ballfield…..looking on the ground, and in the trees…..no chicks seen. I got to the end of this road and turned around….and quickly spotted two ospreys sitting side by side on a fence. I put up the scope on the car window….mom and chick. Side by side. So sweet. Then I thought, I drove right past them coming in but now they know I am looking at them…..how do I get out without disturbing them? Hmmm. Well, I will drive as far to the other side as I can and go quickly without looking at them. It didn’t work….mom flew. But chick stayed put. There was another chick missing too, so I thought I will go check some other nests….but as I drove away I thought….nope can’t do it. Gotta go back. So I watched that chick on the fence from a distance. Then I looked up and saw that dad was perched on a lightpole directly above the chick. Suddenly a lot of commotion, food begging, erupted and I saw the other missing chick return to the nest and mom met him there. When the fence sitter heard all this, she started to think she was missing something….and she walked back and forth on the fence and then finally jumped off and started circling to gain the altitude needed to get back to the nest….it was a bit windy that day and when she finally got up higher she decided to just land on the lightpole next to the one where the nest was. And within a minute, the male came over and perched right next to the chick! This is what they do! They stay close. After the chicks have been successful, this kind of care and attention will lessen. But I have seen it so much this year. At the nest with our two oldest parents, both 19 years old….when their chicks first fledged, and landed in some odd spots…..the tippy top of a pine tree….an adult would show up on the next pine tree over. Staying close. And today I was watching a nest in a gravel pit. They had one chick and the nest had no chick in it….but an adult was on the nest edge. So I closely studied the whole area, looking for the chick, and spotted him on some equipment on the far side of the quarry….and dad was perched right near him. I see this so often, and see the deep concern and support they show to these newly fledged chicks. This is a side of osprey behavior, that many may not be aware of, just warms my heart so much and makes me love them even more. What spectacular parents they are.

Fledge at the Arb!

 The first Arb chick fledged today! At a little after 8 am she took off….first photo….and she returned at about 10:47….i think at first she tried to land on the camera cause mom and the remaining chick were looking up and the whole camera shook. But then she tried again and landed in the middle of the nest between the other chick and mom. Boom! Successful fledge! Thanks to Meg for alerting me as I was out in the field….but I had been seeing the signs of imminent fledging for a few days so had her alerted. I cant sit in front of a screen that much…and I watched all morning before I had to hit to road to check many other nests….so there ya go folks…..one more to go! Any day now! But now we have to tell them apart…..

It’s quite a milestone from those early days when we were worried about whether Mom would even feed them….but she grew into a terrific parent and now she is a successful parent!