Monthly Archives: August 2015

Seasonal Success

Causing concern

After our youngster fledged we had a few days worrying about her. We witnessed some unusual behavior from both the adults after a day or two of not seeing the fledgling. The unusual behavior did make for a brilliant trip with great views of the adults in flight. Iona took off from the empty nest carrying a freshly caught fish and flew about the clearing and nest area for a good while. Eventually she landed in an odd perch and began eating the prey. Both adults spent some time calling and a lot of time in flight together. We didn’t hear any reply from the youngster. We were initially relieved when we spotted a large dark bird coming into the area, a first year white-tailed eagle but this bird was promptly chased off by one of our adults! This wasn’t our fledged chick but must have been another from a different, nearby territory. We went home fairly concerned that evening.

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Iona (adult female) being mobbed by a hooded crow

Finding your wings? Or feet?

Thankfully the next day we spotted our eaglet down on the ground below the nest site. She still hadn’t gone far but seemed to be in good health overall. She was “playing” with twigs and sticks down on the edge of the forest. This behavior is probably a combination of pure curiosity and instinctual learning. She was also flapping and helicoptering up a wee distance before landing again. Later that day she flew a short distance and disappeared from our view.

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Our 2015 youngster perched below the nest site

Too tolerant

Earlier this week, Dave Sexton our RSPB Officer for the island was heading to the Mull Eagle Watch viewing hide and spotted the youngster down on the shoreline of Loch Scridain. He stopped to watch as she was “playing” again. This time unfortunately it was a piece of plastic/marine litter. She was following it as it blew away from her and picking it up again. Thankfully she didn’t swallow the litter but was content to amuse herself with it. The chick was then spooked off her shoreline spot by a local dog walker which was actually a good thing – we don’t want her to become too tolerant of people. White-tailed eagles are often tolerant of us and are the more visible of our two eagle species which makes it easy for people to target them for illegal raptor persecution. Hopefully this might make her a little more wary before she starts traveling further afield, away from the relative safety of Mull.

Eagle exploration

Hopefully in the next few weeks the youngster will gain more confidence and take to the wing again. John our RSPB ranger will continue running trips through Tiroran Forest (booking necessary) to search favorite areas for the eagle family. The all important survival skills including hunting must be learnt before she leaves the comfort of parental safety and begins to roam more of the island. Hopefully she will “buddy up” with other young eagles; they are fairly sociable and gregarious during their first few years, especially throughout winter.

Golden eagle boost?

Golden eagles may be set for a population boost in Southern Scotland after studies show their numbers are much lower than they could be. Plans are afoot to give the species a boost by taking birds from the Highlands and Islands. Hopefully this might encourage the birds to spread into Cumbria and Northumberland; two counties devoid of breeding golden eagles despite being suitable. We’ll also find out more about Scotland’s golden eagle population soon, after a detailed census this season.

Thank you

Thanks for reading the blog throughout the season and for the lovely feedback via Facebook and Twitter. This is likely to be the last blog post for a wee while as my seasonal position is over for 2015. To keep up to date over the next few weeks with ongoing trips at Mull Eagle Watch please head over to our Facebook page. We’ll also let you know the name of this years’ youngster in the next few weeks.

Mull Eagle Watch is still open for trips and you can book on by calling Craignure Visitor Information Centre on 01680 812 556.

 

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First flight

Proud parents

Last Monday 27th July, myself and RSPB ranger John Clare witnessed the first ever flight of our eagle chick. The eaglet was due to turn 12 weeks old the following day and we’d usually expect chicks to fledge at around that age. We watched our youngster fly over the forest near the nest site, surprised to see the first flight going so well. The eaglet even managed to twist over in mid-air to threaten a buzzard which was coming too close! This flight backed up our thoughts on the sex of the chick, we’re pretty sure that she is a female due to size (females are up to 25 per cent larger than males). Throughout the day we enjoyed views of her back on the nest, she spent all day exercising and preening on an outer branch – maybe that flight was enough for one day! The adults, Iona and Fingal spent some time near the nest site for the afternoon and we witnessed them perched very close together looking very much like a couple, something we don’t see very often.

Iona & Fingal perched together, taken through the scope (Thanks to Rachel Duffy)

Iona & Fingal perched together, taken through the scope (Thanks to Rachel Duffy)

Crash landing

After such a good first flight it couldn’t all go swimmingly and we watched the fledged eagle crash land into conifer trees near the nest a few days later. She had been attempting to land on the nest itself and badly misjudged. This is natural and is all a learning process, it’ll take some practice to fully control that large wingspan, especially when dealing with trees. Since then she has spent some time down on the ground in the grassy clearing below the nest site. The weather hasn’t been great and may be making her reluctant to try flying again. The eagles look very vulture-like when they’re on the ground, demonstrating that they’re actually closely related. The image below is of Thistle, last year’s youngster, raised in the same nest site by Iona and Fingal. This is what our current eaglet will look like, although I’ve not managed to catch a photo of her yet!

Thistle after fledging in 2014

Thistle after fledging in 2014

Almost autumn

Trips will be running throughout August, and John is likely to continue running walks to look for the eagle family into September and October. My position ends mid-August, so I will be leaving at a time when the fledged youngster is learning how to survive and find food. The chick will probably stay with Iona and Fingal into October or November, and will then begin to roam wider areas. This a natural process, eagles will cover huge areas in the first few years of their life. White-tailed eagles reach adulthood at around five years old and will then settle down to create their own territory. During the sub-adult stage white-tailed eagles are fairly gregarious and often form social groups or roosts, especially during the winter. So if you can brave the wintery weather, our colder months are a perfect time to watch eagles in the UK. Along with white-tailed eagles, Mull wildlife throughout autumn and winter is incredible – otters and golden eagles don’t go anywhere, and in addition we gain many wintering bird species. Believe it or not, we’re already on the lookout for migrant birds and we’ll notice some of our summer residents leaving soon too. And we haven’t even had a summer yet!

Drastic deer

On most of our trips we’re seeing large numbers of red deer through the telescopes. These animals are mostly feeding higher up on the hillsides during summer in an attempt to avoid midges and flies. Red deer are a native species to the UK and are the largest species of deer we have, but due to the loss of our native predators like wolves, bear and lynx deer species are now present in very large numbers.

reddeerThey’re always a pleasure to see and at this time of year many of the stags are still growing their antlers, which are covered in velvet for now. Deer antler is one the fastest growing materials in the mammal kingdom, increasing by 1cm per day! Despite being a great sight, deer numbers do need to be controlled, as they cause many issues within our ecosystems. In large numbers with no predators, they prevent natural woodland regeneration, damage heather moorland and shrub and increase erosion and flooding. They can also cause real damage to timber plantations across the UK. The survey figures suggest that on Mull alone we have around 12,000 red deer. We also have some small pockets of fallow deer (a non-native species).  It won’t be long until the deer are moving to lower ground for the deer rutting season. Again, another great reason to visit Mull in the colder months. September and October here go by to the sound of roaring and rutting stags.

Thanks for reading as usual.

Rachel 🙂