Nuthatch fixes nest entrance, video


This video shows a nuthatch using mud to make the entrance to its nest the right size.

It makes the entrance smaller, so that it itself will still be able to go inside, but bigger unwelcome intruders won’t.

The video was made by Kees van Boekel, in nature reserve De Leemput, Etten-Leur, the Netherlands.

Stoat on video


There are not only weasels in the Netherlands.

There are also their larger relatives, stoats.

This one was filmed in the Zwartenbergse Polder in Noord-Brabant province, by Kees van Boekel.

Good Dutch rare fish news


This video is called Brook Lamprey Spawning April 2011.

Translated from the Dutch water management organisation De Dommel, about saving fish before dredging the river Dommel at the Klotputten sand catchment spot:

Tuesday, December 11, 2012

As a precaution, the water, in addition to the exemption rules, was thoroughly inspected for the presence of brook lampreys. During these checks a hundred brook lampreys were captured. These lampreys were transferred a few kilometers south of the Klotputten to a suitable habitat. This capture shows that the brook lamprey population in this part of the Dommel is much larger than we previously thought. During this activity also a large number of individuals of the protected spined loach, some gudgeons and some perches were captured.

Ecological development

Lately, we see a tremendous positive environmental development in the upper Dommel river. For example, last year the very rare green gomphid dragonfly and the common club-tail dragonfly were found. These species, like the brook lamprey, depend on clean water and good morphological processes.

This is a video of brook lampreys sharing a spawning ground with river lampreys, a larger related species. As far as is known, the first ever observation of this in the Netherlands.

 

Dutch rare plant discovery


Northern bedstraw

Translated from Staatsbosbeheer in the Netherlands:

Saturday, August 25, 2012

During survey work foresters of the Forestry Department in National Park De Biesbosch have discovered the very rare Northern bedstraw (Galium boreale). In total there are about 50 to 100 plants. Northern bedstraw since 1997 has been no longer observed in the Netherlands. So far as we know the location in the Hengstpolder is the plant’s only habitat in our country.

Dutch raven comeback


This is a raven video.

Ravens, which had been exterminated in the Netherlands, are slowly coming back now.

Not only in Friesland province in the north, but also in the south.

This year, three young ravens were born and have fledged in the nature reserve De Maashorst (between Uden and Oss) in Noord-Brabant province. That is for the first time in over 90 years.

Chihuahuan Raven Corvus cryptoleucus in the USA: here.