This is a video about a carnivorous plants exhibition in the botanical garden.
Today in the botanical garden. It is sunny, about eight degrees centigrade.
The autumn weather this year has been much warmer than usually, with all sorts of effects on the living world.
There is unseasonable flowering.
Many plants who by the this time of the year should have dropped their leaves still have green leaves.
And woodbine and sycamore maple.
In the inner city of Leiden, 54 bird species have been observed, most of them in the botanical garden.
Not all of them: a little auk was seen wintering in a canal; so not in the garden.
One of the most frequent species, the starling, can make many different sounds, including edible frogs.
The great spotted woodpecker nests in the garden.
We saw one, in the same tree as a jay.
The ring-necked parakeet also nests here. Sometimes in abandoned woodpecker’s holes; these parakeets are not really aggressive, they don’t drive other birds away.
The tawny owl used to nest in the botanical garden.
It has recently moved to a private garden nearby, but still visits often.
More on owls: here.
Other bird species here: nuthatch; and treecreeper (especially close to the astronomical observsatory buildings).
And blue tits, and long-tailed tits.
About thirty grebes nest in the city canals.
Sometimes, especially in winter, one can see kingfishers there.
On a branch, the fungus Polyporus brumalis.
A bit further, coral spot mushrooms.
And field blewits.
Still further: Psilocybe fascicularis.
Linnaeus did not like fungi much, as they were a problem where to put in his system of nature.
Next year, the garden will celebrate Linnaeus’ birth three hundred years ago.
There are two portraits of Linnaeus in two museums of the city.
In the big pond of the garden are spinycheeck crayfish, originally from North America.
In spring this year, when unusual snow prevented them from migrating further east to their eastern Netherlands nesting grounds, 35 hawfinches were here.
On 30 March 1995, Hans Adema had seen just one hawfinch while visiting the garden; which he then described as really special in Daucalium, 1995 #1, page 13.
Hawfinch video: here.
We see a redwing high up in a tree.
Sometimes, goldcrests winter in the garden.
Concerning sparrows, we should watch whether they are the most frequent species, the house sparrow; or tree sparrows; or Spanish sparrows, very recent arrivals in The Netherlands.
Crocus laevigatus flowers.
In Britain, crocus species flowering in autumn are well known.
In The Netherlands, crocus species are associated with spring, so the autumn flowering ones are less known.
A young grey heron, just before the exit.
Linnaeus, Catesby and “Carolina” in birds’ scientific names: here.