Tag Archives: Fehmarn

Display flights of European Honey-buzzards

WespenbussardSpring is the best time to observe a flying or circling European Honey-buzzard (Pernis apivorus) on their breeding grounds. Now is Display time! Since the breeding birds arrive until the middle of May in the breeding area, bird watchers and bird photographers have to hurry-up to take pictures of European Honey-buzzards. This is because oviposition falls on the brink of May/ June. At the end of June / beginning of July, the youngs appear and at to the beginning of August fledging starts.

There are two periods of activity for the adult European Honey-buzzards: display and post-fledging. Display takes place in Germany from mid of May till early June. There is a time lag between spring migration observations and display flights. It seems, that on first arrival in early May the birds are rather lazy perhaps feeding and resting after the long migration. The lazy flight with long periods of effortless floating, interspersed with the very occasional stall or spell of active flapping, occurs over their breeding areas at this time. This can be misinterpreted as migration flight. In this time very impressive and repeated display flights – “butterfly display” – is brief and in rainy springs may not be conspicuous. In “butterfly mode” the European Honey-buzzard shakes its wings above back in rapid succession, usually six or seven times.

A good description you will find here. The author mentions, that Continue reading Display flights of European Honey-buzzards

Wespenbussardbeobachtung im Flug

WespenbussardDer Wespenbussardzug ist ein beeindruckendes Schauspiel. Der interessierte Beobachter wird normalerweise schon viel Zeit, Geld und Reisestrecke investiert haben, um eine gute Beobachtungsstelle – wie z.B. die Insel Fehmarn im September – zu erreichen. Da stellt man dann häufig fest, daß Greife doch sehr weit entfernt vorbeiziehen und/oder das Wetter einen Schönwetterflug in hohen Luftschichten ermöglicht, der die Wespenbussarde (Pernis apivorus) hoch am Himmel erscheinen läßt. Die Silhouette und der Flugeindruck sind dann die einzigen Anhaltspunkte bei der Bestimmung. Die in der Fotogalerie gezeigte hohe Variabilität der Federkleider machen die richtige Identifikation auch nicht leichter. Dabei soll dieser kleine Blog helfen.

Der erfahrene Beobachter des Wespenbussardzugs scheint sich in der Identifikation auf die Kombination verschiedener Flugmerkmale anderer Greife zu verlassen. Beim Wespenbussard (Pernis apivorus) sind zum einen Flugmerkmale in der Art von Milanen (Milvus sp.) mit Merkmalen der Gattung Buteo (allgemein: Bussarde) zu nenne. Hier stellt sich also die Frage: Was genau sollte man sich ansehen, wenn man Charakteristika von Milanen oder/ und von Bussarden abgleicht? Daher die Frage: Fliegt er in der Art von Milanen oder in der Art der Bussarde?

So weisen Wespenbussarde einen recht langen Schwanz auf, Continue reading Wespenbussardbeobachtung im Flug

Heavy influx of migrating White-winged Tern in Germany

White winged TernToday saw a remarkable influx of White-winged Tern, Chlidonias leucopterus, in several parts of northern Germany. Observations were recorded from the Seeburger See (lake) near Goettingen (1 indiv.), from the Wedeler Marsch near Pinneberg (13 indiv.), from the Winsener Marsch near Winsen an der Luhe (2 indiv.), from the Sulzdorfer Wiek on the islands of Fehmarn (3 indiv.), from the Okeraue near Braunschweig (1 indiv.), from the “Langes Moor” near Cuxhaven and a maximum of 252 indiv. from Dreye (a southern suburb of Bremen in Niedersachsen.

Mid of may is generally a good time to see White-winged Terns. In the evening of May, 14th of 2007 more than 200 individuals of these terns flew over the nature reserve “Streng”. Sometimes the terns picked in front of the observation tower in short hovering flights insects from the reed bed. In the meantime other White-winged Terns flew over the meadows where they were seen in company with Gulls, Common Black-headed Gull (Larus ridibundus). Remarkably, only one Black Tern, Chlidonias niger, mixed among the many White-winged Tern.

The White-winged tern used to be a rare bird Continue reading Heavy influx of migrating White-winged Tern in Germany