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BerichtGeplaatst: wo 13 apr 2011, 13:02 
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Wel 3 kuukjes nu, alle eitjes uit en dat na 41 dagen, en degene die gewond is heeft wel de kracht gevonden om te gaan staan en om eten te roepen.
Dat mannetje snapt het gewoon nog niet, valt ook met z'n neus in de eitjes en dan nu ineens zijn er de kuukjes. (Heeft het baltsen overgeslagen)

De natuur gaat gewoon z'n gangentje en is ook heel sterk dus we blijven maar duimen voor een, alsnog, goede afloop. Afbeelding

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BerichtGeplaatst: wo 13 apr 2011, 16:17 
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Afbeelding

13 april 17.15 uur, 3 stevige kuukjes. Het opvallende is dat deze 3 kuukjes veel zwart dons hebben, vergeleken met andere slechtvalken jonkies


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BerichtGeplaatst: wo 13 apr 2011, 16:20 
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Hier zie ik op dit moment toch 3 bewegelijke kuukjes,

Afbeelding

Ook op de Campic van Meryl hierboven, die een momentje later is genomen.

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BerichtGeplaatst: do 14 apr 2011, 09:37 
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Afbeelding

Na afloop schuift ze op de jongen, die ik helaas niet meer heb gezien. Tijdens de voeding stond ze er precies voor. 'k Heb in ieder geval beweging in 2 jongen gezien.


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BerichtGeplaatst: do 14 apr 2011, 09:39 
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Ik heb hier een filmpje die ik gemaakt heb van een film van 45 minuten opname.
Het jonkie vooraan leeft helaas niet meer. De andere 2 zijn echt heel zwak. Vergine is bijna 20 minuten zelf aan het eten geweest. Dit gaat echt niet goed aflopen....

Edit: Filmpje is door account verwijderd.


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BerichtGeplaatst: do 14 apr 2011, 16:37 
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Ca. 17.05 uur, snappen doe ik het niet meer, maar nu zien ze er tamelijk vief uit.


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BerichtGeplaatst: do 14 apr 2011, 16:40 
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gewoon dus maar afwachten en er het beste van hopen.......


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BerichtGeplaatst: do 14 apr 2011, 17:04 
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Afbeelding

Stond als een ...te schreeuwen, vlak voor de cam, en verdween met de prooi...


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BerichtGeplaatst: do 14 apr 2011, 17:05 
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En ligt nu te schreeuwen in de kast.

18.35 uur is nu pas weer stil


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BerichtGeplaatst: vr 15 apr 2011, 07:58 
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BCAW postings by Warbler (Italy).

Post subject: Re: Rome~2011 Appio & Vergine, Aloa & Falcao

Posted: Thu Apr 14, 2011 3:09 pm

Appio and Vergine's nest was monitored closely all morning. At lunch-time, Giac, our leader, went to the nest and took the chicks out. The first to hatch was dead but the other two were still alive although very weak. Giac fed them and put them back. He said they were very weak and we couldn't be optimistic about their chances; he also said they were full of parasites (but they only hatched a couple of days ago!!!!). His intention was to return to the nest in the late afternoon, feed the chicks again and disinfest the nest.
Vergine returned to the chicks after Giac left and kept them warm for some time. When she left to 'go shopping' (the male wasn't co-operating) the male took over, unfortunately. It seems that he was sitting ON the chicks, at least that's what it looks like from the photos on our forum. But worse was to come... he pushed the chicks against the walls of the nest and started wriggling about on top of them as though they were eggs and had to be turned . We fear that they have been reduced to a pulp and we're waiting to hear Giac's report on what he found when he went back to the nest.
As soon as we have definite information, I'll post it but, as Ruud warned earlier, it's unlikely to be good.


Posted: Thu Apr 14, 2011 3:13 pm

Update: Giac went back to the nest and found the chicks in very poor condition. He left the slightly stronger one with Vergine and has taken the other one away to be looked after. He started to disinfest the nest and will return tomorrow morning.



Posted: Fri Apr 15, 2011 2:20 am

I hope the forum will forgive me for this very long post but I've translated Giac's post from our forum; for those that don't know, Giac is a biologist.

Unfortunately, the second chick (the one removed from the nest) died last night.
During the first visit in the morning I ascertained the death of one of the chicks (probably the one which hatched first) and the very serious condition of the other two. The three chicks hatched after an incubation which had been discontinuous at times and had lasted a long time. One of the four eggs laid by the female disappeared from the nest in the final stage of incubation (probably eaten by the adults) and, once we'd gone past 45 days from the date the first egg was laid, we didn't think the eggs would hatch.. But, to everyone's great surprise, the first chick hatched a few days ago and the other two a short while later. The chicks seemed weak right from the start and the female didn't seem able or capable of giving them food. Despite this, all three seemed vital until the last images broadcast by the cam on Wednesday evening. It should be said that, in the very first days after hatching, chicks can still count on the nutritional reserves of the yolk and so survive, even without food from the parents, as long as they're kept warm...
Yesterday morning, the bodies of the two surviving chicks were infested by parasites ([i]Carnus haemapterus
, a dipteron that sucks blood from very young chicks which are unable to remove them with their beaks) and covered with clots of blood under the wings. The chicks were very weak and their weight was only 25 gm (consider that a newly laid egg weighs around 45 gm and about 37 at hatching!, imagine how undernourished they were - effectively, they'd not been fed by their parents...). We removed as many parasites as we could (hundreds) with our fingers and pincers, we gave the chicks a little food and put them back into the nest where the female immediately took them back under her wings to brood them.
We were on the other side of the wall separating the nest (on the left in the picture from the cam) and we watched the parents' behaviour, ready to remove the chicks if they weren't accepted back immediately. However, the female returned to the nest in 5 minutes and we thought that, with a full stomach and the warm protection of the mother, the chicks could have gained some energy. The intention was to have them regain strength and then they may have become more convincing in asking the parents for food (begging). We planned to make a second visit to the nest in the late afternoon to make a definitive elimination of the parasites and check on the condition of the two chicks left, giving them more food so that they could get through the night.
When we went back, we found one of the chicks in an even worse condition compared to the morning, with scratches and scabs on its back. It was laying on its back in the nest (it was probably the one 'ill-treated' by the male). We decided to remove it from the nest to try a recovery in a more comfortable place - I took it home, put it under a solar lamp with a hot-water bottle at 37°C and fed it with tiny bits of food, but it slowly gave up and died a short time ago...)
We left the one that seemed stronger in the nest after feeding it. We watched to see whether the female would take it back, ready to take it away if she didn't. After about 12 minutes, she came back and put it back under her wings and so we left it with her, thinking that the warmth of the mother would be enough to get it through the night. Tomorrow morning, we'll find out whether we made the right choice but, at this point, we mustn't delude ourselves....

The pair Appio and Vergine (we've called them with these names but they may not be the same pair as last year) have behaved strangely during this breeding season, the male, in particular, seems to have no experience at all or, perhaps, as someone suggested, if he's not the natural father of the chicks, he may have more interest in removing them than raising them... For the moment, these are only speculations but we may be able to make and check some hypotheses later. For example, comparing the DNA of the chicks of this year and last year to see if they are related or the parents have changed..
The observations through the cam are unveiling unexpected behaviour in these birds. The comparison between the various pairs shows that there are characters and personalities in them, just as in humans. The attention of Vento towards his partner and the chicks, the way he takes turns in incubation, his constant, yet discreet, attendance are reflected in reproductive success which is repeated regularly while the confused and 'crazy' behaviour of Appio is having tragic consequences for the survival of the chicks. It may be that balanced behaviour and collaboration with the female are acquired with 'maturity' and reproductive experience, and this may help a pair to face difficulties like scarcity of food or storms. However, there may be other factors, like environmental disturbances and pollution, which may be felt by the falcons differently from how we humans perceive them and that the behaviour we interpret as 'aberrant' or unexplicable are merely adaptations to these changes. For example, we should reflect on the fact that, 3 of the 4 pairs of falcons nesting in boxes in Roma (Appio & Vergine, Aloha & Falcao and Alice & Virgilio) have lost an egg shortly before hatching. An analysis of the pictures recorded (all our cams record images on the PC every 5 minutes as well as sending pictures onto the web) shows that the only explanation could be for all cases that the female has eaten or 'cannibalised' the egg. Some of you may remember there was a similar episode during the reproduction of Aria & Vento in 2005. In that case, the cannibalism was well documented with a series of 'strong' photos (requests were received at the time to remove the photos from the forum so that younger visitors were not shocked) and this aroused scientific interest with many hypotheses about the behaviour. Cannibalism, that we may judge as crazy may be to enable the reproductive investment and parental efforts to be optimised with a view to a period of limited resources, which the birds are in some way able to predict. In other words, if I lay 4 eggs thinking I can raise all of them but then after starting incubation I realise that there isn't enough food for all of them in the environment, or the weather conditions are getting worse (wind and cold = less prey to hunt), it's better to sacrifice an egg straightaway, when the investment in reproduction is at the beginning, rather than risk losing the chicks later, when there has been greater investment in reproduction... Last year, our colleague Stefania Casagrande noted 4 episodes of cannibalism of the eggs out of 11 nests among the kestrels, and the explanations for this behaviour may be the same as for the peregrine falcons.
We'll wait and watch over the coming weeks to try to understand how to connect what happens inside the nests to what's happening in the environment...
The cams enable us to have a front seat in discovering and seeing what has always happened in Nature. It may seem ruthless, we have emotional reactions but it's an honest contribution to the increase in our knowledge of the reality of the world and the animals living around us


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