Nest surveys - by helicopter!


Last week the BEP teamed up with Base 4 Aviation to conduct the first ever aerial survey of the Cederberg cliffs for Black eagle nests. Excitement had been running high for the possibility of this survey since I received the first email from Stefan Fouche, a helicopter pilot and instructor in Cape Town; I work for Base 4 Aviation - Helicopter charter company & flight school.  From our side, I want to expose our student pilots to as many area's, conditions, operational experience as possible.  To prepare them as well as possible for their career as pilots.  What I'd like to know is... how can we help you?  At no cost I might add.  Animal surveys, plant surveys?  The fantastic thing about a helicopter is time saved in moving people, the ability to see the bigger picture, finding people or animals etc.” It is not often you get given an opportunity like this so the whole team was elated when permits came through and finally the helicopters arrived in the Cederberg last week.
The plan was to fly along all cliffs with an observer onboard whose job it would be to spot, take a GPS location and photograph all nests. Timing is of the essence and scanning the cliffs constantly was the only way we could pick up on the new sites. The skill of the pilots was also key – mountain flying is unpredictable at the best of times so they were ever-ready to pull away from the mountains in a tricky situation or unexpected downdraft.
We spent three days in the air and covered more ground than I have managed to in the last two years on foot. In the Cederberg we found 35 previously unknown nest cliffs – which more than doubles what I had already located by hiking! We also took the opportunity to make a flight out to the Sandveld where we found an additional 11 nest sites. This data is an invaluable contribution to my research and will give us a greater understanding of the population size and distribution of eagles in this area.
A sample of the nests we found.

I am extremely grateful to Base 4 Aviation for their time, Driehoek Tourist Farm for a landing field and accommodating the team, Lucia Rodrigues & Patrick Banville for their dedication to finding the nests and Cape Nature for allowing this survey to happen – we all came away feeling highly privileged to have the opportunity to experience the beautiful Cederberg from a new perspective!







To share our experiences please check out the video which Stefan made from footage taken during the survey:

video

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