The Kingfisher nest site has been the centre of a lot of drama in the last couple of days. Two serious threats to the Kingfishers have cropped up and although one has now been dealt with, the second is still present and I’m considering what can be done about it.
The first problem became obvious when I visited the site to observe the brooding behaviour on Thursday morning. From the opposite bank, I watched in horror as a herd of bullocks shoved there way past and even jumped over the fence protecting the area of the bank with the Kingfisher nest. The fence was put up a few years ago after cattle had stoved in the bank and destroyed a nest in 2004, so to be fair it wasn’t in great repair, however until today I thought it was still servicable. After driving round to the location where I access the bank on the Kingfisher side of the river I managed to lure the cattle away from the bank and then surveyed the damage.
I’d seen the cattle jostling and bucking directly above the nest hole, so I was fairly concerned and on examination a clod of earth was missing directly above the hole. On the plus side, the Kingfishers were still in attendance and I watched in some relief as the male entered the burrow and stayed in for a brooding session.
Once I’d established that the nest seemed to be intact I contacted the estate office and despite them being shorthanded over the easter weekend they were great and we managed to organise a fencing repair the same day. If we hadn’t repaired the fence, I feel certain that the bank with the nest in it would have been lost within days.
So on Thursday lunchtime we had the tractor down at the site and a new fence was erected. We kept the new fence posts as far from the burrow as we could, but I was very aware every time the posts were bashed in of the potential disturbance to the burrow.
So it was with some trepidation that I went down on Friday 6th to monitor the site from a distance using my bag hide. After half an hour I was really pleased to see the male emerge from the burrow and after a brief fishing session opposite the nest return to brooding duty. The male emerged from the nest 3 more times until finally, the female returned and entered the burrow. So, I still have both parents apparently brooding normally despite the disturbance.
However, the Kingfishers were not all that I saw on Friday.
I had been sitting in cover with my bag hide completely covering me for about 2 hours when I heard a noise directly behind me. I slowly turned round and through the small hole in my hide I stared straight into the face of an adult Mink sitting upright sniffing the air and trying to work out what I was.
After a few seconds it disapeared for a minute or two and then re-appeared and ran straight in front of me no more than 5 feet from my feet. It hopped over a tree trunk and then to my horror dropped down into the river and swam straight to the undergrowth right next to where the male Kingfisher has been fishing from a low perch in between brooding sessions.
I watched as the Kingfisher emerged from the burrow and perched no more than 6 feet from where I had last seen the Mink. After a few seconds the Kingfisher dove into the water, caught a fish and moved to a safer perch. After the Kingfisher had returned to the burrow I watched the Mink emerge from close to where the Kingfisher had been fishing and trot along a fallen tree branch overhanging the river.
Well, that was as much as I saw today. How much time that Mink is spending in the vicinity and whether it could create an opportunity to ambush the Kingfishers I simply don’t know. Either way it re-enforces my intention to protect the burrow from being dug out from above as it was last year, I just hope the adults are going to be OK. As I watched it bought to mind Charlie Hamilton Jones’s film Halcyon River Diary, where a mink ambushed a pair of fighting Kingfishers, so mink are certainly capable of predating adult birds.
On the plus side, when I left both adult birds are still present and behaving normally, the bank is now protected from the cattle and so far the Mink obviously hasn’t figured out a way to ambush them.