National Trust Purbeck Wildlife


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We Three Kings

northeastwildlife.co.uk

Goldcrest                            northeastwildlife.co.uk

Get out and about in Purbeck this month and celebrate the festive season by tracking down these three regal beauties.

You might think that a bird with the Latin name Regulus regulus would be a rather grand and imposing thing but in fact our ‘king of the birds’ is Britain’s smallest; the tiny goldcrest.  Sporting a yellow crown, goldcrests belong to a family of birds called kinglets.  Look for them in pine woodlands throughout Purbeck.

Firecrests are another kinglet found in Purbeck.  This is a stunner to look at with bronze shoulders and a black and white head pattern topped by a fiery orange crown.  Firecrests occur in coastal woodland with holly trees.  They are rare, but a good place to try is behind the huts at Middle Beach.

Finally, a kingfisher fly-past, with a flash of royal blue and a loud, piping whistle, makes any birdwatchers’ day.  Look for them at Little Sea or along the Poole Harbour shoreline.

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Settlers from the South

Spoonbill by northeastwildlife

Spoonbill by northeastwildlife

Spoonbill by northeastwildlife

Forty years ago, when I started birdwatching, spoonbill, little egret and Mediterranean gull were all rare species and to find any one of them on a day’s birding was a good achievement. Today, I can go and watch them any day of the week without leaving Purbeck.  Perhaps this is a case where climate change has allowed birds to extend their range northwards.

Of the three, spoonbills are the least common though a recent count of sixty within Poole Harbour was a national record for a single site. Look for them at Middlebere or take a harbour boat trip to view birds on Brownsea lagoon.  In fact you can often see spoonbills on a live Brownsea web cam at www.birdsofpooleharbour.co.uk.

Studland is great for the other two species. Little egrets feed in Brands Bay and sometimes commute to Little Sea to roost in the lakeside trees there.  Go to South Beach for Mediterranean gulls where you will see birds scavenging on the shoreline and flocks of up to fifty birds roosting on the sea.


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Harmless Hornet

Hornet hoverfly at Knoll Beach

Hornet hoverfly at Knoll Beach

Hoverflies, exquisite creatures that are important pollinators of many flowers and whose larvae often feed on plant pests, are usually either overlooked or mistaken for stinging insects.

But one species that is hard to overlook when insect watching, but definitely mistaken for a stinger, is the hornet hoverfly.

At almost 2cm long, the hornet is the largest and most impressive hoverfly in Britain. As its name suggests, it is an excellent mimic of the Hornet, so keeping predators such as birds away, but lacks a sting.

Only a very rare visitor to the country up to the 1940s, in recent years it has become more common in southern England and is still spreading northwards, perhaps as a result of the warmer climate. The adults are migratory so this is a good time to look for them on late-flowering buddleia.


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Anyone for Cricket?

Anyone for cricket?

Great green bush-cricket

Great green bush-cricket

We often hear the various chirping, trilling and buzzing of crickets and grasshoppers at this time of year but finding them, let alone catching them, is a great challenge that quickly brings back childhood memories. So I couldn’t resist when this spectacular great green bush-cricket, the sword-shaped ovipositor indicating a female, appeared beside a grassy path at Middle Beach.

Despite being by far our largest bush-cricket, the expert camouflage of the great green makes them hard to spot though males can be located by their very loud ‘song’, produced by rubbing a hind leg against a wing, that sounds like a sewing machine going continuously for long periods.

However, the song of some species, for example the widespread speckled bush-cricket, is so high pitched that it cannot be heard by most people. One useful method for finding these is by scanning with a bat detector because, just as with bats, the device makes their sounds audible.

 


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Heathland Star

northeastwildlife

northeastwildlife

It is always a great pleasure to hear, and hopefully see, a Dartford warbler on the heath.  Most often skulking in a thicket of gorse, it’s easy to understand why an alternative name for them is furze-wren.

 

My subjective impression this summer is that they have had a successful breeding season.  Certainly they seem to be quite conspicuous just now along the Ferry Road and around the Knoll dune heath.

 

This is good news, strengthening the role of the Purbeck heaths as an important area for Dartford warblers.  Furthermore, although they are mainly restricted to southern England, good breeding success and better winter survival has allowed them to expand their range northwards in recent years, reaching up to the Midlands.

 

And perhaps they are losing their renowned shyness and secrecy a little – one of the most reliable places to see them this summer has been by the BBQ area at the Knoll Beach car park.

 

 


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Seashore Safari

A keyhole limpet on Studland Beach

A keyhole limpet on Studland Beach

A group of keen-eyed and eager primary school children on a Studland ‘seashore safari’ found a fantastic variety of marine life along the strandline and, amongst the seaweeds, shells and various bits of crab, there were a few surprises.

A small, unfamiliar crab with attractive sand-particle colouration, was identified as a Pennant’s Crab.  This species has flattened back legs for swimming.

Small sea gooseberries, or comb jellies, were spotted in the shallows even though they are almost invisible apart from rows of delicate hairs called cilia that resemble tiny combs.  These propel the sea gooseberry through the water and, in sunlight, their regular, beating motion generates bands of iridescent colours.

Best of all was a keyhole limpet.  Unlike the common limpet, this species has an oval-shaped hole at the top of the shell that allows more efficient circulation of water over the gills and faster removal of waste products.


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Tern it on

June is the perfect month to look for terns.  These slender seabirds are widespread along our coastline now, patrolling inshore waters in search of food for their chicks.

Look for a flash of white as a tern plunge-dives from around 20 feet to catch a small fish just below the surface.  As it flies off, notice the long wings and deeply forked tail that gives the alternative name of sea swallow.

Many of these terns nest on the Brownsea Island lagoon.  Here, the terns have been encouraged to nest by the construction of small gravel islands surrounded by protective fences that keep out predators such as crows and herons.  Nesting boxes and drain pipes set on the ground provide cover for the chicks in poor weather.  Over the years the number of pairs has varied but on average there are around 200 pairs of Sandwich terns and 100 of common tern.

A group of nesting Sandwich terns with chicks on Brownsea can be viewed by webcam from the ‘Birds of Poole Harbour’ website.

common tern

common tern