Storks
At last… they have appeared. Lots of us were looking with a bit of worry at the empty storks’ nests. Last year, at this time, they have already arrived to Poland. Some of us were afraid if they are able to bring up their young this year, in order to make them ready to fly away in autumn.
“Mass arrivals have already started ,however ,in comparison with last year it is 10 days delayed” says PhD Jarosław Krogulec from Polish Bird Protection Society. “The same process was noticed on their way in Turkey.”
According to PhD Krogulec such delay is not dangerous and it is within normal limits. This year flying through the Nile valley took them more time. You may ask – why ? Here the weather condition took the main part.
“The delay form 1991 was connected with military action called “ The Desert Storm”. But that idea proved not to be true “ – says PhD Krogulec.
Poland is called as the centre of the Eastern population of storks. Here lives about 40 thousand couples which is one – fifth of the world population and it makes the European record. In Denmark, Belgium or Holland there are just a few or dozen couples. Second place takes Spain where is situated the centre of the Western population. Both populations are isolated, they don’t meet on their ways, what is more they have got completely different habits.
Polish storks live in the countryside, make their nests on the houses’ roofs and on the posts. On the contrary, Spanish ones are connected with cities. You can see their nests on the churches, palaces etc. The main habitat is the cathedral in Alfaro in the province of warra, there is 110 nests.
Their diet differ as well, Polish storks mainly feed on small mammals and amphibians because they live on wetlands. Spanish ones settle down on steppe areas so the basis of their nutrition are invertebrates. Here the main danger for them is irrigation, for ours - all the way round – the process of drying.
“New regulations exclude the forestation of the permanent grassland “- says PhD Krogulec. “Taking into consideration the fact of being the centre of it their population we are obliged to protect them.”
Based on the article from POLITYKA nr 15 09.04.2011
“Mass arrivals have already started ,however ,in comparison with last year it is 10 days delayed” says PhD Jarosław Krogulec from Polish Bird Protection Society. “The same process was noticed on their way in Turkey.”
According to PhD Krogulec such delay is not dangerous and it is within normal limits. This year flying through the Nile valley took them more time. You may ask – why ? Here the weather condition took the main part.
“The delay form 1991 was connected with military action called “ The Desert Storm”. But that idea proved not to be true “ – says PhD Krogulec.
Poland is called as the centre of the Eastern population of storks. Here lives about 40 thousand couples which is one – fifth of the world population and it makes the European record. In Denmark, Belgium or Holland there are just a few or dozen couples. Second place takes Spain where is situated the centre of the Western population. Both populations are isolated, they don’t meet on their ways, what is more they have got completely different habits.
Polish storks live in the countryside, make their nests on the houses’ roofs and on the posts. On the contrary, Spanish ones are connected with cities. You can see their nests on the churches, palaces etc. The main habitat is the cathedral in Alfaro in the province of warra, there is 110 nests.
Their diet differ as well, Polish storks mainly feed on small mammals and amphibians because they live on wetlands. Spanish ones settle down on steppe areas so the basis of their nutrition are invertebrates. Here the main danger for them is irrigation, for ours - all the way round – the process of drying.
“New regulations exclude the forestation of the permanent grassland “- says PhD Krogulec. “Taking into consideration the fact of being the centre of it their population we are obliged to protect them.”
Based on the article from POLITYKA nr 15 09.04.2011
oryginal article from POLITYKA nr 15 09.04.2011
Stork's migration
Source:
"O Ptakach" Multico
"O Ptakach" Multico
Black Stork Ciconia nigra
From Wikipedia, the free encyclopedia
The Black Stork Ciconia nigra is a large wading bird in the stork family Ciconiidae. It is a widespread, but rare, species that breeds in the warmer parts of Europe, predominantly in central and eastern regions. This is a shy and wary species, unlike the closely related White Stork. It is seen in pairs or small flocks—in marshy areas, rivers or inland waters. The Black Stork feeds on amphibians and insects.
During the summer, the Black Stork is found from Eastern Asia (Siberia and China) west to Central Europe, reaching Estonia in the north, Poland, Lower Saxony and Bavaria in Germany, Czech Republic, Hungary, and Greece in the south, with an outlying population in Spain.
The Black Stork Ciconia nigra is a large wading bird in the stork family Ciconiidae. It is a widespread, but rare, species that breeds in the warmer parts of Europe, predominantly in central and eastern regions. This is a shy and wary species, unlike the closely related White Stork. It is seen in pairs or small flocks—in marshy areas, rivers or inland waters. The Black Stork feeds on amphibians and insects.
During the summer, the Black Stork is found from Eastern Asia (Siberia and China) west to Central Europe, reaching Estonia in the north, Poland, Lower Saxony and Bavaria in Germany, Czech Republic, Hungary, and Greece in the south, with an outlying population in Spain.
White Stork Ciconia ciconia
From Wikipedia, the free encyclopedia
The White Stork (Ciconia ciconia) is a large bird in the stork family Ciconiidae. Its plumage is mainly white, with black on its wings. Adults have long red legs and long pointed red beaks, and measure on average 100–115 cm (39–45 in) from beak tip to end of tail, with a 155–215 cm (61–85 in) wingspan.
The White Stork (Ciconia ciconia) is a large bird in the stork family Ciconiidae. Its plumage is mainly white, with black on its wings. Adults have long red legs and long pointed red beaks, and measure on average 100–115 cm (39–45 in) from beak tip to end of tail, with a 155–215 cm (61–85 in) wingspan.
Another bird's migration
Source:
"Szkolna encyklopedia" Collins
"Szkolna encyklopedia" Collins
Barn Swallow
pol. Jaskółka dymówka
łac. Hirundo rustica
ang. Barn Swallow
The adult male Barn Swallow of the nominate subspecies H. r. rustica is 17–19 cm (6.7–7.5 in) long including 2–7 cm (0.8–2.8 in) of elongated outer tail feathers. It has a wingspan of 32–34.5 cm (12.6–13.6 in) and weighs 16–22 g (0.56–0.78 oz).
It is a migratory bird, spends winter in the south and middle Africa. It goes to Africa in VIII-X and returns in IV-V
łac. Hirundo rustica
ang. Barn Swallow
The adult male Barn Swallow of the nominate subspecies H. r. rustica is 17–19 cm (6.7–7.5 in) long including 2–7 cm (0.8–2.8 in) of elongated outer tail feathers. It has a wingspan of 32–34.5 cm (12.6–13.6 in) and weighs 16–22 g (0.56–0.78 oz).
It is a migratory bird, spends winter in the south and middle Africa. It goes to Africa in VIII-X and returns in IV-V
Common House Martin
pol. Jaskółka oknówka
łac. Delichon urbicum
ang. Northern House Martin
The adult Common House Martin of the western nominate race is 13 centimetres (5.1 in) long, with a wing span of 26–29 centimetres (10.2–11.4 in) and a weight averaging 18.3 grammes (0.65 oz).
It spends winter in Africa, India and Southeast Asia. It comes to Poland in the first day of May.
łac. Delichon urbicum
ang. Northern House Martin
The adult Common House Martin of the western nominate race is 13 centimetres (5.1 in) long, with a wing span of 26–29 centimetres (10.2–11.4 in) and a weight averaging 18.3 grammes (0.65 oz).
It spends winter in Africa, India and Southeast Asia. It comes to Poland in the first day of May.
Sand Martin
pol. Jaskółka brzegówka
łac. Riparia riparia
ang. Collared Sand Martin
The 12 cm long Sand Martin is brown above, white below with a narrow brown band on the breast; the bill is black, the legs brown. It nests in tunnels bored in sand, river banks, etc.:
arrive in: IV-V, fly out: VIII-IX
łac. Riparia riparia
ang. Collared Sand Martin
The 12 cm long Sand Martin is brown above, white below with a narrow brown band on the breast; the bill is black, the legs brown. It nests in tunnels bored in sand, river banks, etc.:
arrive in: IV-V, fly out: VIII-IX