Common buzzard     Hiireviu      Buteo buteo

If the egg hadn’t been visible we wouldn’t have dared to say anything; even for female buzzard Mari it was quite time-consuming to ”fish” for it on the nest bottom.

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The mating of birds is an intricate process and it may quite often fail too.

The reasons can differ because birds must read each other’s wishes in the eyes or conclude them from behaviour. So a lack of understanding may occur between the sexes and in some cases a female who is irritated by the behaviour of her mate may even become aggressive. In some species the male tries to attain consent for the mating by bringing gifts but as we all have noticed, the birds don’t touch each other before the moments of actual copulation. This may in the opinion of scientists be the reason why birds must mate several times in order to fertilize one egg.

Pale brindled beauty     Lumevaksik      Phigalia pilosaria

The pale brindled moth – or beauty - is one of the first butterflies that will hatch at once after the snow thaws. It ends its flights already before the end of April.

The males are night active and willingly fly towards an artificial light.

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Flower pollen is an allergen that is present in ambient air and intrudes with breathed air into the bronchi, causing allergic problems for pollen-sensitive people, for instance asthma and hay fever. From spring to autumn, during the flowering period of trees and plants, the concentrations of different kinds of pollen are high in the atmosphere.

Pollen allergy most frequently shows as pollinosis, also called hay fever, the reactions of eyes, nose and bronchi to pollen. Symptoms of pollinosis are for instance reddening of eyes, itching and tear flow, runny nose and sneezing, a heavy whistling breathing and coughing characteristic of asthma. In Estonia about 10% of the population suffer from pollinosis.

We have apps for music that on listening recognize the performer and story. We have also software  for organising photos that detect faces in photos and say who is in the photo.  We have not yet good  identifiers for nature sounds, fungi, animals and plants. Or have we? Actually we have. And it isn’t April 1 any longer. Pl@ntNet recognizes a plant from a photo, by its flower, leaf, stems or fruits.

This is a plant identifier created in France and it should know the flora of Western Europe. But it turns out that Estonian plants are no strangers to this artificial intelligence.