Video recorded by Urmas Lett, www.eenet.ee
Webcam images captured by Liz, LK forum
Buzzard pair admiring the little miracle on the bottom of the nest
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.
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.
Text and photos Aare Lindt, www.loodusmuuseum.ee
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.
Info from Estonian Environmental Research Centre, www.klab.ee
Photos Arne Ader
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.