A visit to Poole Harbour at any time of year will undoubtedly yield a number of these handsome ducks. In winter, however, the numbers increase with birds coming south from northern Britain and Scandinavia.
The shelduck (Tadorna tadorna) is not actually a duck, and It not a goose either! Scientifically, it placed between the two and actually, it is not hard to see why as it displays characteristics of both. The diet of a shelduck is somewhat different to ducks and geese who tend to be vegetarian. Shelduck eat enormous numbers if hydrobia which are tiny molluscs that live in our estuary mud flats. Molluscs have shells hence the name - shelduck. The duck that eats shells; easy!
Males and females are very similar but the male (as in this photo) has a broader brown waste band.
Shelduck make their nests in burrows, often those of rabbits. How does such a large bird
Whilst bladder wrack is the best known of the wrack seaweeds the one most often seen is actually the channelled wrack (Pelvetia canaliculata). Growing freely near the high water line it is adapted to withstand long periods of exposure to the air without drying out. The weed that is out of the water the longest is usually blacker than the paler colour of that which is covered for longer. It does not have bladders for flotation as it rarely needs to float. It may appear to have bladders at the ends of its fronds but the swellings are not full of air, they contain a jelly substance and are the fruiting body of the seaweed. Channelled wrack grows in large masses and can be seen on sea walls, quays and piers as well as the upper reaches of rocky shorelines but each plant only grows to about 18 inches long due to the amount of time it is our of water. It is common around British shores and Dorset is no exception to that. In Scotland it has been used as cattle fodder but I was surprised to r…
The centre of the web is a funnel in which the spider waits. Around the entrance are lots of single strands, a bit like trip wires, that stop insects from an easy escape and gradually bring them nearer to the central funnel from where Agelena can strike!
I have heard people refer to these as Funnel Web Spiders which, of course they are not. Funnel Web Spiders are renowned for being very poisonous where as this spider is quite harmless (to humans).
The are extremely nervous creatures and quickly retreat in to their funnels which makes photographing them very difficult.