Black-necked Grebes (Podiceps nigricollis) know how to use favorable conditions surprisingly spontaneously in individual years, as if “scouts” were permanently on the move, which guide other birds to new habitats and locations. One example is the spontaneous emergence of a breeding colony at the Alfsee in the Landkreis (district) Osnabrück in Lower Saxony in June 2011 with 52 pairs which tried to use the favorable conditions through the mass occurrence of emergent water plants. It goes without saying that not all breeding occurrences emerge and disappear so quickly; there are also numerous breeding sites that have been occupied for decades and are often located near colonies of gulls, especially those of the Common Black-headed Gull (Larus ridibundus).
One other example is an occurrence in southern Brandenburg. In a vast shallow lake area, the Rietzer See near Kloster Lehnin, the numbers are impressive since the beginning of counting and on April 13, 2012 more than 110 Black-necked Grebes were counted.
It was not until 2011 that the first Black-necked Grebes appeared at the Reckahner ponds, also in the municipality of Kloster Lehnin, but in a fish pond farm. Then there were no more reports for 7 years and then from 2018 onwards some reports, which then culminated in a Continue reading Distribution patterns of Black-necked Grebes
During migration and in winter waterfowl rest in good numbers on the Tegeler See (a lake just north of Tegel airport). A visit in late January performed with damp and cold conditions at temperatures around 0 degree Celsius. The shore is lined of a crumbling ice. No welcoming weather. No snow nor sunshine will improve the images. But very quickly, this does not matter. A wintering Slavonian Grebe (Podiceps auritus) in the middle of Berlin had been observed due to a message on the local birding website Ornitho.de. This is an opportunity a nature photographer does not want to miss. The Great Malchsee is Continue reading Lake Tegel as a winter birding destination in Berlin
During a visit to the hides im Dawlish Warren National Nature Reserve I was lucky to observe a partly albinotic Eurasian Oystercatcher. This was on the afternoon of 22nd of August 2013. The website of the reserve refers to abnormalies in plumages with oystercatchers which occur with some regularity most years. Otherwise, this wader is very frequently found on the southern coast of Great Britain. This is especially true for overwintering birds and migrating birds in fall.
I saw this unusual Eurasian Oystercatcher in a flock of roughly 100 of his congeners. Standing a bit by side all the time, it was neither mobbed nor attacked by the other, “normal” Oystercatchers. I could see that this bird had red eyes. In deed it is a partial “albino”. In an article by Charlie Fleming, an albino Oystercatcher is mentioned already for July 2009. The plumage looks quite the same. So maybe this bird still survives at Dawlish Warren for at least 4 years.
My main reason for my visit to Dawlish Warren was, to check if I could catch up with the Roseate Tern (Sterna dougallii) seen a few weeks ago. Additionally a Slavonian Grebe (or Horned Grebe), Podiceps auritus, had been reported. Unfortunately I dipped with both rarities. But the leucistic Oystercatcher was an excellent photo opportunity, too.
Of a white Eurasian Oystercatcher I had not heard before. But from Germany Continue reading Albino Eurasian Oystercatcher (Haematopus ostralegus) in Devon
Great Crested Grebe (Podiceps cristatus) are common birds in Germany. Its population is therefore largely constant. Following severe persecution in the 19th century a significant recovery was observed since the mid-20th century. The grebes benefited mainly from the increase in the food supply of small fish in nutrient-rich waters. However, their habitat by water sports activities as well as fertilizers and pesticides from agriculture is also threatened from time to time. Not to be underestimated is the illegal persecution by fishermen.
It was a big surprise when people told me that in the immediate vicinity of my home a couple of grebes should breed. The area was well known as a recreational area – a lake with pedal boats, swimming & bathing areas, round trips, anglers and dog meeting points. I did not remember to have identified any riparian vegetation zone with reeds or rushes. Only mallards (Anas platyrhynchos) had their paradise on earth there, because they were fed by careless walkers regularly with tons of bread. At such a lake could never grebes breed, so I thought! So I let the matter rest.
About six weeks later I was looking for an opportunity to test the autofocus of my newly purchased camera, a Canon EOS 1 Mark IV with a Canon 400mm f4,0 DO. I remembered the Mallards Continue reading Great Crested Grebes on floating nest