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31 December 2009
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Carrowdore Data Trends

What’s been happening at Carrowdore?

We have installed clever little probes at both nesting sites which measure temperature and humidity at different times throughout the day and night. The data collected helps us study what factors affect Peregrine Falcon behaviour. For example, does the temperature affect the chances of survival? Do they leave the nest less often on cold days?

From 30th April onwards, you can monitor these graphs and compare activity between Kilrea and Carrowdore nesting sites.

We will update the graph with links to video clips of key events such as laying, hatching and feeding. Over 90 days, you will be able to assess which site is the driest, warmest and what impact that might have on the chicks survival.
 

 


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Temperature trend graph

Temperature
When Peregrine chicks are hatched they need to stay warm through heat transfer from the parent (this is known as brooding) and be well fed. This comes with its problems in that the female is better than the male at brooding more chicks (because she’s bigger) and hunting (because she’s faster and can catch larger prey). Outside temperature can play an important factor in which parent broods and which parent hunts. The format and frequency of data can be key to identifying why peregrine’s behaviour changes and perhaps even predicting the chicks survival chances.

Humidity trend graph

Humidity
Humidity is wetness in the atmosphere. If peregrine chicks get wet they will suffer from the cold and will need to be shrouded that much more. This is because they don’t have oily feathers to protect them from the wet, and so they would get cold through poor heat transfer.


 



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