Saturday, 22 June 2013

A Day for Dwarf Shrubs

The rhododendron is in full flower in the Castle grounds and looking quite magnificent. However, the common rhododendron (Rhododendron ponticum) is not always so welcome out in the wider countryside where it can spread through woodland swamping other vegeatation completely until there is nothing left but the rhododendron. It looks good at this time of the year, but it's not a good wildlife habitat at all.


But there are other native shrubs that are flowering just now. They are a lot smaller than rhododendron, but they don't take over, and provide much more for our birds and animals.

Here are the flowers of cowberry, an evergreen shrub of woodland and moorland, and blaeberry (or bilberry in England), which is deciduous. Both of these flowers will eventually turn to fruit. We know and love the blaeberry, but so do many other creatures - lots of birds and some mammals including pine martens and badgers. The cowberry has a red berry which is not so tasty to us (though not poisonous), but still important for other creatures.

Round ball-shaped flowers of the blaeberry
 In addition the bushes provide food for many insects, which then provide food for birds, especially chicks which need protein to develop. The capercaillie feeds its chicks on caterpillars from blaeberry bushes
These shrubs also provide great shelter, particularly for ground-nesting birds.

Bell-shaped flowers of the cowberry




Friday, 7 June 2013

Bambi and Other Babies


Spring has definitely arrived at last and the grounds of Blair Castle are teeming with new life. An oystercatcher has laid eggs in the car park (don't worry, we've roped it off so they don't get squashed!) and another oystercatcher has chicks running aound near hercules Garden. The resident swans in the garden are also busy on their nest, and are pretty unwelcoming if you get too close.

You need to look carefully! Not the best shot but after this it went inside the tree fence and was even harder to see!
 
Two red deer calves have also just been born in the deer park. They look gorgeous with their spotty coats which are for camouflage. The mother also cleans their rear end assiduously so that they don't give off any scent to attract predators when they are left alone on the hill. She leaves her calf while she feeds and returns to it later .Calves usually appear earlier in the park than in the wild because the deer here have an easier life and are better fed. Wild calves are usually born in June though it may be a little later this year. If you visit and notice that the magnificent stag is missing, don't worry. He has gone to a new home and will be replaced with a different stag so that there is some fresh blood / genes - we don't want the deer to get too in-bred.

Saturday, 11 May 2013

First Cuckoo of Spring

A pleasant surprise this morning. While working in Blair Castle grounds we heard the first cuckoo of this spring. It's always lovely to hear the call of the cuckoo as it's a sign that the warmer weather is on the way.

Listening to the characteristic sound also brings a sense of awe, to think that this bird -about the same size as a pigeon- has flown all the way here to Scotland from central Africa. The call is the male bird, letting females in the area know that he has arrived and is ready to take a mate.

European Common Cuckoo (Cuculus canorus)
Image: Locoguapa

Cuckoos are brood parasites, a term that means rather than rearing their own chicks they lay an egg in the unattended nest of another bird, pushing out one of that birds own eggs in the process. The bird whose nest it is then unwittingly raises the cuckoo chick as it's own, unaware of the swap. The young cuckoo usually pushes it's foster brothers and sisters out of the nest, meaning it is the sole recipient of it's surrogate parents attentions. Cuckoos in Scotland usually lay their eggs in the nests of birds such as Meadow Pipits, Dunnocks, and Reed Warblers. The health of the population of Scottish and British cuckoo populations is therefore closely linked to those of these birds. The dramatic decline of cuckoos in recent years has largely been due to a reduction in their egg-hosts' populations decreasing, caused mainly by habitat loss and fragmentation.

The cuckoo has a breast patterning that mimics the coloration of the peregrine falcon and keeps potential competitors and predators at bay. This is the grey and white banding that you can see clearly in the picture above. It is though that this patterning also helps them to successfully parasitise the nests of other birds, fooling them into thinking that they are going to be attacked and eaten, and so they flee the nest leaving the female cuckoo free to lay her egg. Something which she can do in under 10 seconds!


Wednesday, 8 May 2013

Black Grouse Lekking

Dawn was a bit hazy and dull this morning but it looks like today may be nice again. Until the rain arrives, at least. I was up early to survey some Black Grouse lek sites for the Perthshire study group and managed to get some camera-phone footage of  the activity. The quality isn't amazing but you can see how easy it is to do a bit of amateur 'digiscoping' without needing too much technical kit. The initial results are below - no sound though: the grouse were a bit too far away to pick anything up!


When I get a chance I will try and get some more footage and photos up. If you'd like to get closer or have a try yourself, why not check out Atholl Estates' Black Grouse Land Rover Tours that will take you out to the action.


Monday, 29 April 2013

Eagle Learns about Leks

Wow. An amazing sight very early this morning. While out counting black grouse lekking (displaying) as part of ongoing monitoring, a juvenile golden eagle appeared. The black grouse all disappeared in a flash and the young eagle didn't catch one, but it hung around. The urge to lek is so strong in the male black grouse that they started coming back fairly soon and the eagle had another swoop in.
A young eagle - note the white tail and white undersides to its wings

A male black grouse at a lek. An easy target???

I watched for about half an hour and the eagle had no luck. Black grouse are generally only occasional prey for an eagle, but if this one does learn to catch them, then he has breakfast lined up every spring as the birds not only congregate but make a bubbling call as well, alerting the eagle to where they are. However, as eagles are generally lazy hunters it might well be that it's all too much hassle.

Wednesday, 17 April 2013

Snow Melt Adds To Heavy Rainfall

The weather has been very wet here since the early hours of Sunday morning. Heavy rainfall combined with milder temperatures has meant that much of the snow from the higher ground has been melting, swelling the rivers and burns and making them run in high spate. You can see from the picture and video below just what a difference this can make

A tranquil view of Gilbert's Bridge in Glen Tilt on a 'normal' day.
The river is relatively calm. in this picture

The video above was taken from the top of Gilbert's Bridge on Sunday morning. 
The river was in heavy spate and flowing very fast!


Sunday, 7 April 2013

Lambs and the Springtime

Well it must be spring because the lambs are appearing. The temperatures outside tell us it is still winter, but our cross-breed sheep started lambing last week. It should be a lovely time of year, but unfortunately the extreme cold weather has made things very tough for the ewes and lambs. There is no growth at all of the fresh, nutrient-rich grass which is so important at this time of year for the pregnant and lactating ewes. Our sheep lamb outside and would normally be grazing on the rich, green field now, but instead they are having to make do with winter rations. Some ewes are very hungry, others have re-absorbed lambs or lost them after they have been born. The mothers with triplets are suffering most as they have to give so much to their lambs. It will take some time now for the soil to warm up enough for the grass to grow, and until then we risk losing more lambs every day because the mothers can't provide enough for them. Sad indeed.

Mother and lamb in the 'special care unit'

You can help by keeping disturbance of the sheep to a  minimum by keeping to paths and keeping dogs on leads amongst the sheep.

You can also help struggling our sheep and cattle farmers throughout the country by making an effort to buy British meat.

Let's hope that by the time the Blackface lambs are due in May, things are looking a whole lot better for them.