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May, 2007

Glaslyn osprey diary

Follow the fortunes of a pair of ospreys breeding near Porthmadog in north Wales.
  • Glaslyn osprey diary

    Growing fast

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    It's only just two weeks since the first of the chicks hatched but they are growing up already! They have lost their white downy covering now. Their dark skin is showing through, with the beginnings of proper feathers developing. Only the youngest is still clinging on to bits of fuzz, with a little white head - this will probably be gone too by tomorrow though, and it will be dark all over like the others.

    They look very different to when they first hatched - like little dinosaurs - and are around the same size as a thrush now. All of this development must be down to a hearty diet of fish, fish and…more fish! They have been eating loads, thanks to their committed Dad and his regular deliveries to the nest.

    Yesterday morning, he brought a big sea trout back. He and his mate grappled around with it for a few moments, before she took it off him. Fish doesn't come any fresher than this, it was still thrashing around in her talons! She ate the head herself, which is a delicacy usually reserved for the male. The youngest chick was raring to go with a fiesty few pecks at bits of the fish, trying to get food for itself rather than wait to be fed by Mum and Dad.

    Around 3300 people came to visit over the three days of the bank holiday weekend and our first community weekend of the season. At one point on Saturday morning, it looked as though the sand martins were trying to out number the visitors with a hundred or so flying close to the site. In fact we had a full suite of hirundines that day with swifts, swallows, house martins and sand martins all putting in an appearance.
  • Glaslyn osprey diary

    battle of the beaks

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    Week one of chick watch has been fantastic, we've had a great time and the three little ones have been doing a marvellous job of entertaining us.

    The youngest one is not much smaller than the other two but is a little slower at getting food. It may need just a little time to gain in confidence and then it will join in the battle of the beaks with the others, pushing and shoving to be first! Slow it may be, but it still gets a hefty amount of food. They all do.

    In fact, the chick that seems to be the most dominant in the nest (probably the eldest) ate so much on Wednesday that we could see its crop (the soft pouch on its chest) visibly swelling and swelling until it looked fit to burst! A first experience of having eaten too much and it didn't look comfortable.

    The chick did the only thing it could do in the circumstances and setled down for a little snooze. Sleeping it off seemed to do the trick and when more food was brought a few hours later it was grappling for more.

    At first, when the chicks were only a day or two old, the adult female would offer up food and then eat it herself if the chicks didn't take it straight away - now she has gone to the other extreme, desperately trying to stuff chunks of fish into unwilling beaks this morning.

    The female is still spending time sat on them, though as they get bigger and more wriggly, she fidgets more. When they get too big to sit on, she will sit very close to them 'mantling' - that means using her body and wings as a shield to try and protect them from the weather, not just wind and rain but the strong sun too. As you can image, perched high up in a tree top, there is no escape from the blistering heat of the sun on a hot day.

    We witnessed our first fight this morning. The eldest two chicks were really going for one another, beaks snapping and head butting. It's a measure of how much they've physically developed in the last few days that they are now able to control their bodies well enough to fight with each other! It's harmless enough really, just an example of competitiveness amongst siblings. It's bound to happen, in the intimacy of an osprey nest there is no respite from each other's company.

    No such squabbling down on the ground. We are all gearing up for our first community weekend for the season - 26, 27 and 28 May from 10am until 6pm. Come along and see us if you can, it should be great fun.
  • Glaslyn osprey diary

    A full house - chick three joins us!

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    The Glaslyn osprey nest is now home to three beautiful downy white chicks. The final egg hatched on Sunday morning to the applause, whoops and cheers of 30 or more visitors in the centre. The egg had broken fairly neatly and the domes of both ends, with a clear, sticky coating inside could clearly be seen.

    The little chick was wriggling in the bottom of the nest, blissfully unaware of all the nervous energy that had been focused on it from down on the ground over the last 6 weeks. The egg tooth that the chick used to chip its way out of the shell has done its job now and is no longer needed. It will grow out gradually over the coming days. Indeed, it's no longer possible to make out an egg tooth on either of the two older chicks.

    Grow they most certainly will, especially with the amount of food that 'Dad' is bringing back. Since the third chick arrived, his instinct to provide has gone into overdrive and he has delivered a glut of fish to the nest. At one point, he was over one side of the nest feeding the chicks with rainbow trout whilst his partner was over the other side, feeding them a piece of mullet left over from earlier in the day.

    We haven't seen them do this feeding double act before - normally we would expect only the female to be feeding them at this early stage. The male is as keen as mustard though and even brought the rainbow trout straight to the nest without first sitting on a nearby tree to remove and eat the head - he's Super-Dad.

    In the next week or so, the chicks will start to lose the white bristly down that they have, with lots of white skin showing through, and will start to grow proper feathers. They will keep these feathers until they moult next year. We have seen a few stray primary adult feathers in the nest over the last week or so. This is probably a sign of the adult female moulting and growing new ones. This happens a feather or two at a time but now is a particularly good time for her to do this, as she isn't flying much at the moment and she will need to be at her peak by the time she migrates back to Afirca, probably in early August.

    Speaking of flying, the chicks are having an easy time lolling around at the moment but all of their growing and learning over the next 8 weeks will be building up to the moment when they waddle to the edge of the nest and plunge off to take their first flights. But, it's way too soon to think of that yet. Let's just enjoy them for the moment, whilst they're still tiny little fluff-balls - they don't stay little for long...

    Over the coming bank holiday (26, 27 and 28 May), we are holding a community weekend at the osprey viewing site. There will be stalls with local crafts and produce on sale, a chance to meet local organisations, or take part in competitions and children's activities. Oh yes, and see the ospreys of course!

    Just like on any other day here at the viewing centre, it's completely free of charge and will be a great chance to see the newly complete osprey family. Looking forward to seeing you.

  • Glaslyn osprey diary

    Second's out - chick two

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    Thirty-six hours after it's older sibling hatched, chick number two broke out as well.  At 11am yesterday morning, the female got up for a stretch and, behold, there was not just one fluffy body underneath her but two!  As you can imagine, the 20 or so people gathered around the screens went wild!  It was a great moment.  The female had been wriggling and wriggling since around half past ten, so things must have been going on below for half an hour or so.  With only one and a half days difference in ages, there is very little to choose between the two, they both look exactly the same.  The only slight apparent difference yesterday was that the egg tooth was a little sharper and more prominent on one beak than the other (we really can see them in such detail!), so we assume that was the newest of the two.  The second chick experienced its first feed at around 2pm yesterday afternoon and has had several since.  It is clear when feeding that one chick is just a little more clued up than the other.  It turns its head in the right direction and seems a bit more in control - probably the elder of the two.  The female is very careful and tender when feeding them.  She offers up tiny fragments of fish to whiever beak is available, but she doesn't hang around - if neither beak takes it, she just swallows it down herself!  The chicks are propping themselves up on their tiny little wings when they feed, reaching up as high as possible.  Their heads look huge compared to their skinny little necks and they have not yet got the muscles or experience to know how to control their heads properly - they flop around like unruly puppets sometimes.  In these very first days though, they spend much of the time snug and warm under their mother, just like the last 6 weeks when they have been in the eggs.

    Egg number three is still snug and content in the nest.  If it follows the pattern of the others then it may hatch this evening.  However, even inside the egg, the chick is likely to be aware of the increased activity in the nest - more movement and sounds around it - and may want to break out sooner rather than later to join in the chick jamboree - could we have a full house by the end of the day?

     

  • Glaslyn osprey diary

    Shell-ebrating a new arrival

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    We have a chick!  It hatched at the rather unsociable time of 11:17pm last night, so none of the visitors got to see the great event, but it was watched on the night camera by members of the 24-hour protection team. 

    The female is still incubating the remaining two eggs but, when she gets up to turn them and stretch her legs, we can zoom in on the chick and see it in all its fluffy glory.  It is almost pure white but already the distinctive dark eye stripe, which is so characteristic of ospreys, is visible.

    The chick had its first feed at 10am this morning, watched by the first visitors that had begun to arrive for the day.  It was only a little feed, consisting of a few morsels of fish but there have been a further two feeds throughout today.  The male, already aware that he has more mouths to feed, had brought back two by mid-afternoon and flew right over the viewing site at around 4pm, possibly going out for more.  As well as hungry chicks to keep sustained, the adults' food requirements will also increase as they use up energy caring for their new arrivals.

    We have had masses of people here today checking out the little one and we expect even more over the weekend, as we are hoping for a second little beak to emerge on Saturday.  Let's hope the next is more considerate of its viewing public and comes out when we are all gathered around the screens in the visitor centre.

     

     

     

     

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