Kor Bosch

@korbosch.bsky.social

Wildlife & history

A few days ago as I cycled the sun went down, creating a beautifully illuminated golden sky. A grey heron (blauwe reiger) flew past and also enjoyed the moment, alternating gliding with moments where it was plummeting straight down before landing in a field. #birds

A grey heron is seen in silhouette gliding down, wings fully outstretched, in front of a golden sky with slight horizontal streaking running through it. Below the silhouettes of a treeline can be seen; above, the sky is also black.

I always love watching tiny birds, like this marsh tit (glanskop), thoroughly explore something small, like a branch, in their quest for food. Most humans would walk past the branch without a thought, much less inspect it, but this bird spent half a minute closely examining every aspect. #birds

A marsh tit on top of a branch. It is standing upright, but its head is turned down to look at the tip of the branch. The bird is mostly an unassuming greyish brown, with a black cap and chin. A light drizzle is falling, causing the bird to look a little ruffled. Its wet tail is fanned out.The small bird is leaning all the way forward on the branch, so that it is almost dangling upside down. It is examining the branch from below, looking for small insects or invertebrates. Some rain drops are falling.

I always love watching tiny birds, like this marsh tit (glanskop), thoroughly explore something small, like a branch, in their quest for food. Most humans would walk past the branch without a thought, much less inspect it, but this bird spent half a minute closely examining every aspect. #birds

A marsh tit on top of a branch. It is standing upright, but its head is turned down to look at the tip of the branch. The bird is mostly an unassuming greyish brown, with a black cap and chin. A light drizzle is falling, causing the bird to look a little ruffled. Its wet tail is fanned out.The small bird is leaning all the way forward on the branch, so that it is almost dangling upside down. It is examining the branch from below, looking for small insects or invertebrates. Some rain drops are falling.

Buzzards (buizerd) sometimes practice their hunting skills on unsuspecting pine cones. I didn't know this, until I saw one doing just that a few days ago and thought it was an odd choice of diet for a bird of prey. This buzzard took the job very seriously! (5 images) #birds

A remarkable encounter in the Maasduinen: a weasel (wezel) crossed the cycle path ahead of me, from right to left. When I stopped I saw more movement on the right - another weasel had not dared to cross and watched me from hiding! So small and fast, I'd never seen one sit still before. #mammals

The head and neck of a common weasel peek out from the leaf-covered forest floor, right besides a tree. The rest of the weasel's body is hidden by the leaves. The animal is looking right at me. It looks a little mouse-like, but with large, flat ears. It's mostly brown with a white underside.

At the Maasduinen national park. Thankfully this gorgeous nature reserve is extremely unknown in the Netherlands and therefore very quiet (I always hear more German being spoken here than Dutch) and it's hot now but a delight as usual. However, the signs of drought are very obvious.

Two honey buzzards (wespendief) circled overhead today. That these birds of prey evolved to favour a diet of wasp larvae found through watching and listening which they get to by digging with their claws makes them, to me, one of the most fascinating raptors we get here. #birds

A honey buzzard in flight, seen from below. From this angle it is mostly brown and white, with a coarsely striped body and in this case light striping on the wings and tail. Most noticeable of all are its very differently shaped head, which is more narrow and elongated, like a pigeon's, and its clear clear yellow eyes. This individual appears to have a grey head, a sign that this is a male bird.

A couple years ago I got the Lynx "All the Birds of the World" book, with all the world's birds in a single volume, possible only by fitting many of them onto each page. Sometimes I leaf through it and it's always a joy, but not many pages have as spectacular a layout as this one does!

Page 121 of "All the Birds of the World", showing various species of nightjars. There's 10 individual species on the page in all, but most striking is the fact that two of them, with a body otherwise comparable to the rest, have extraordinarily long tails - in fact that of the lyre-tailed nightjar can be three times its body length and consequently the tail cuts across half the page!

Low water levels at the Arnhem Nieuwe Haven today. The sandy floor of the Rhine is seldom exposed like this, and as we still have a fair amount of summer left it's likely to reveal more of its secrets soon.

Photograph from a fifth floor window showing the Nieuwe Haven of Arnhem at the front and the Rhine / Nederrijn running behind it. At the water's edge the sandy river bed is exposed, followed by a line of rocks, followed by the grassy soil of a peninsula that is often host to friendly cows*

*Friendly cows may have been involved in storming the Westervoort bridge once

Cycled up the dike today and the first thing I saw was a huge white-tailed eagle (zeearend) fly towards me, before it slowly spiralled up higher and higher into the air, then drifting off east. It didn't flap its wings once. Such impressive creatures! #birds

A white-tailed eagle in flight. It is a huge mostly brownish bird (with some lighter flecks) with a large yellow bill and talons. One of its legs is ringed, although the number couldn't be made out on the photographs. The tail feathers are white fringed with brown, which indicates this bird is not yet an adult (which have fully white tails) but more likely a third calendar year juvenile. The bird has a particularly stern expression.

It remains remarkable the extent to which the red-backed shrike (grauwe klauwier) has taken off in the region over the past seven or so years - from 0 to over 30 pairs! They are not shy: this male sat right along the path and didn't budge. A great addition to the Ooijpolder! #birds

A red-backed shrike sitting on a bare, thorny branch. It has a brownish red back, a grey cap and a black stripe running over its eyes, with a white chin below it. It has a fairly long tail which it was constantly wagging up and down like a wagtail, as well as sideways, which was quite amusing to see. The tail is mostly black with a white fringe.

Come on, you can fly at 100 km/h, you could at least look like you're having a good time! Very grumpy looking common swifts (gierzwaluw) speeding along above the Oude Waal, with crops full of insects. #birds

A common swift in flight. A dark, sickle shaped bird. It appears to have an enormous round chin, but that's actually its crop. which it's filling up to feed its young.A common swift in flight. A dark, sickle shaped bird. It appears to have an enormous round chin, but that's actually its crop. which it's filling up to feed its young.A common swift in flight. A dark, sickle shaped bird. It appears to have an enormous round chin, but that's actually its crop. which it's filling up to feed its young.

A white stork (ooievaar) standing on top of a lamp post along a cycle path, one of numerous storks I saw here. It wasn't bothered by passers by - here it was looking down at a cyclist. #birds

A white stork - a large bird with long red legs, a red bill, and white plumage apart from the border of its wings, white are black - on top of a lamp post. The bird is leaning slightly forward so it can look down.

Always nice to see a beaver, in this case in a canal in a residential neighbourhood here in Nijmegen. The many canals have made it a suitable habitat for them, so this is not a rare sighting. (Terrible phone pic, didn't have my camera on hand)

A canal with a beaver swimming in it. On the other side of the canal a row of houses can be seen.

Yesterday I discovered a juvenile garden warbler (tuinfluiter), who had in turn discovered the first ripe blackberry on a bramble bush. Without any concern for me, it carefully stripped away and enjoyed a few bulbs. #birds

A garden warbler, perhaps the most little brown bird of all the little brown birds, holds aloft in its beak a round drupelet pulled off a blackberry as it flaps its wings. Its feet grip on to a stem and an unripe blackberry, its tail rests on a leaf. This bird has virtually no identifiable features - it is brownish, its legs and bill are dark but not black, its underside is a little lighter than the top but noremarkably so, it has no eye stripe and only a subsdued eye ring. Nevertheless, it is incredible to see it in action.

Told my friend we had a good chance of seeing honey buzzard (wespendief) at the spot I'd picked for our walk, and of course my birding promises rarely fail. Two different individuals showed up, and despite the weather being terrible for photography (too sunny) I got a passable shot. #birds

A honey buzzard in flight. It is superficially similar to a regular buzzard in shape, with a longer head and neck with an almost pigeon-like head with cartoonish dark yellow eyes with black pupils. Its underside is more stripey than a regular buzzard's, its tail a little longer

A whimbrel (regenwulp) on Schiermonnikoog, back in april. The sun was slowly disappearing behind the sea wall and only the bird's head was still fully illuminated by its light. When the tide is high, this is a good place to find them. #birds

A whimbrel - a wading bird with long legs and a long bill. It is similar to the curlew, but a little smaller and with a shorter bill that's less curved.

A grasshopper warbler (sprinkhaanzanger) caught in song on Schiermonnikoog in April. These can be tricky birds to photograph, but I discovered plenty of sites where they were active and then staked out one of them in the morning, with favourable light. #birds

A grasshopper warbler singing from the top of a dead bush. It produces a grasshopper-like sound, which explains the name.

It can be easy to overlook "common" birds when you're out birding. This time of year the common whitethroat (grasmus) is pervasive on every walk or bike ride, but it's worth stopping from time to time to admire them, as they're still remarkable! #birds

A common whitethroat sits in the top of a plant. It has a fluffy white throat that stands out like a beard and a dark grey cap, but most remarkable is is its eye: a black pupil in a reddish brown iris, surrounded by a white eye ring, which makes it really stand out. It has a buff breast which slowly fades into a white belly, and a brown back. The bird is singing.

Icterine warbler (spotvogel) can be difficult. They show up late in spring, sing high up in a tree or, more often, from cover, and often disappear the moment you've noticed them. But this bird has been quite accommodating, singing low in a willow tree along a path, often in full view. #birds

A fairly large warbler in a willow tree, yellowish from its chin to the underside of its tail, brownish on its back, tail and cap. Its bill also stand out, which is strong and more orange than usual. The bird sits on a branch and looks around.
The Dutch name spotvogel translates to "mocking bird", as this bird, too, is exceptionally good at imitating the calls of other birds. It can easily confuse Merlin with imitations of oystercatchers for instance, but incorporates them into its varied tapestry of sounds that also include what seem to be imitations of a squeaky duck.

A great spotted woodpecker (grote bonte specht) and his kid made their way to my garden today. They sat on the fence and whenever the dad wanted to move past his child he pecked at it and the young bird swivelled down to the side of the fence. No gentle parenting among woodpeckers! #birds

A fence with two great spotted woodpeckers on it. An adult male bird sits on top, flapping his wings and shouting at the juvenile bird, who is dangling down the side and looking up at their parent.