During the breeding season there is more interesting to look at non breeders, because breeding adults are hided for public.
The hybrid Spotted Eagle Tunne (parents Lesser Spotted Eagle (LSE) and Greater Spotted Eagle (GSE)) is moving around along eastern coast of Baltic Sea and mostly stops in Kaliningrad oblast, Russia. If to compare his journey to the first summer movements of his sister Luule, then we can see similarities. Probably Tunne will move during the summer, but we will see.
Last summer tagged Cranes have produced some surprises. Ahja 4 returned quickly near the birth place and holds into group of immatures of 42 individuals. Also behavior of Savimäe is not common according former knowledge - he returned to Latvia, but left soon back to the Hungary, Hortobagy fields. Probably the surprises will be also in near future with those Cranes..
White-tailed Eagle Meelis is mostly in Russia and Latvian White-tailed Eagle A531 spends most time in Lithuania.
Adult birds are breeding or hold territories (Black Stork Raivo, GSE Iti, hybrid Spotted Eagle Sander and all LSEs). It is difficult to decide it clearly according to the data we have.
GSE Tõnn is probably in Scandinavia, because in Finland there was observed similar bird with transmitter in April. Seems the transmitter of Tõnn is not functioning anymore. Similar situation is with Black Storks Pirsu and Priidu.
14.04.2014 Weather suspends migration
Earliermigrantswere able to usefavorableweather conditions and by now are at nest sites GSE Iti, hybrid spotted eagle Sander, LSE Aadu and Black Stork Raivo. Sander made before return a longer travel to Russia, interesting if he is born there? Raivo uses his known nest site, but we have no data if his mate has returned as well.
But otherimmigrants areentangled inwestern Ukraine, whichhas notbeenclearfor severaldays.Some our migratingbirdsuse therisingair flow anddo not wantto flyin bad weather,because it takesmuchmore energy.Thus,they are waiting forthe weather to improvein order tofurthermove ahead. So in Ukraine are waiting most of our LSEs (Karin, Magnus, Jaan, Max). They dotry tofind thecorrect flightdirection in case ofclearings,however, it hasbeenmostlyrainyorovercast.
The hybrid spotted eagle Tunne is flying more westward where weather seems to be better and he reached eastern Hungay. The White-tailed Eagle Meelis (of third calendar year) flew in Russia close to Ladoga lake and stops there in a wide bog area. The GSE Tõnn did not sent us anything since 29th of March. His transmitter was problematic already earlier, maybe failed now fully. Then we need to think, how to remove this device or replace it?
31.03.2014 Black Stork Raivo is the first
If to compare to last spring then migratory birds are more as two weeks earlier, but in longer perspective they follow the routine. Probably the migration speed of long distance migrants is affected by weather conditions here in north and if the snow is everywhere, the migration will be suspended or even could turn back. This spring is warm in Europe, so migration is quite quick. First arrived to the breeding grounds Black Stork Raivo, in 27th of March. Raivos "competitors" from last year, the Black Stork Priidu is not sending us information and Greater Spotted EagleSander follows his normalroutine. Raivo visited his last years nest site only once and there could be some problem happen with nest during the winter. The route of Raivo near the end of migration was not usual, he made a kind of half cycle around west and north Estonian mainland before landing on his territory.
Greater Spotted Eagle Tõnn left wintering grounds El Hondo, Spain in 23rd of March and last locations we know from southern Germany, Ingolstadt surroundings at 29th of March. The migration route of Tõnn is quite similar to last year one, only less locations we received and last data are not exact enough to insert to the map. Probably after six years exploitation the transmitter is worn already. The logger of Black Stork Pirsu showed up last time in 17th of March, but most probably Pirsu is quite close to breeding range up to now. Only the hybrid Spotted Eagle (LSExGSE) Tunneis still on wintering range, Skadar National Park in Montenegro. The Lesser Spotted Eagles are migrating quite close to each other and are expected to arrive in about ten days. The immature Crane Ahja4 choose in question about Crimea the side of Ukraine. No data received of White-tailed Eagle Sillu, yet.
16.03.2014 Most of the birds began their migration
Probably, the Latvian White-tailed Eagle A531 did not find the nest site, because he moves around in a wide area. Estonian White-tailed Eagle Meelis flew for spring to the Peipsi lake, but he has no rush to find own nest site.
Among the migratory birds on map, there is Greater Spotted Eagle Tõnn olny who did not start spring migration, yet. Some birds have not sent data since mid February, so we will add them if data arrive. First started the migration Black Stork Raivo, our oldest tagged bird. That is not surprising, as Raivo was always among first starters during last years. Raivo left wintering grounds in 23rd of February and followed up to known stop over place in Bulgaria, where stopped ten days up to 15th of March. But surprising is that Black Stork Pirsu appeared on map, his transmitter send some data from wintering area and start of migration. We assumed already that transmitter is not functional anymore.
All Lesser Spotted Eagles migrate along African continent northwards.
Young (immature) Cranes do not hurry with migration, as they will not breed, yet. But hopefully we will see where they spend their first summer of independent life. In wintering grounds they were still together with parents.
26.02.2014 Spring 2014
The new year greetings in news are not far actual anymore, though year in nature starts exactly in spring time.
As rule, in late February some followed birds started to move northward and also now some chary migration in the southern hemisphere occurs. There is late summer and the Lesser Spotted Eagles (LSEs) look northwards. This species has furthest wintering ground among our birds, so LSEs Aadu and Jaan are showing already some short track on map. Spring migration season started on map at 15th of February, so all tracks of current season start that time. There are visible some movements among Cranes. Ahja 4 flew ca 300 km northwards, to the biggest water body in Ethiopia, Tana lake. Second Crane (Savimäe) moved also slightly from Serbia and stopped in eastern Hungary by last received data.
Surprisingly, Black Stork Pirsu sent some locations from Cameroon, though being silent during more as half of year previously. Black Storks Raivo and Priidu did not send data last weeks, but that is usual for those individuals - probably we will see them again on map if they start to fly and more sun for solar batteries will be available. Their transmitters are quite old ones, eight and seven years respectively, so not much effective anymore. Greater Spotted Eagles are still on wintering grounds and transmitters of White-tailed Eagles (WtEs) wait for sun to be charged. Only
Latvian adult WtE named A531 transmits some rare locations and immature Meelis woke up once during the winter.