Realm: Terrestrial
Climate: Temperate
Biome: Tropical and subtropical grasslands, savannas and shrublands
Central latitude: 59.817000
Central longitude: 22.900000
Duration: 41 years, from 1979 to 2019
602332 records
360 distinct species
Across the time series
Parus major is the most frequently occurring species
Methods
Detailed Methods obtained from the Hanko Bird observatory website. Translated from Finnish. Standardized observation:
For Halias, the person appointed as an observer must complete a four-hour standard observation period, the so-called morning routine from the observation bunker in the middle of Uddskatan (the map is available at the station). The morning train starts around sunrise, the exact time is on the list on the station door. During the morning routine, all migrating birds are marked in half-hour intervals (e.g. 8:00, 8:30...). Some of the change is clear and straightforward, but a large part of the small birds, for example, only turn around at the tip of the cape and fly back in the direction of the mainland. A good rule of thumb is that birds that pass the bunker are marked as moving. Common sense should also be used here and, for example, clearly the same individuals should not be marked again. The station has purpose-made change tracking forms and a handy folder,
In addition to migrants, all local birds observed during the day and their numbers are recorded. However, the bird species that in the systematic order of species are after the riskier bird (pigeons, woodpeckers, spinners, owls, barn swallows and sparrows) are only counted as so-called from the standard area, i.e. from the tip area of ??Uddskatan. The border of the Lintuasema area extends to the base of the promontory, to the fence at the beginning of the nature trail. Demarcation of the area and more information can be found in the observation instructions folder.
It is also a good idea to go to Gåsörsudden, which is located 1.5 km northeast of the station, to count birds along the shore of the station. When moving off-road, outside the marked paths, the station's observers use the attention vests found in the station's vestibule. It is strictly forbidden to move around the car parks and elsewhere in the free port area.
The day's migration and local observations are compiled at the end of the evening on both an electronic and a paper station form, the latter are on the bookshelf in the hut. The move is entered on the electronic station form, which calculates the move together and the morning constant separately (read more about the observation instructions). The change observation forms are attached to the paper status form and folded. In addition, the best observations are recorded daily in the Tiira database, instructions for this are available at the station.
Ringing: The tire changers must carry out a standard tire change every day during the period 15.3. 30.11., when it is possible due to the weather. More detailed instructions are in the station's observation instructions folder. If you are interested in obtaining a station tire permit, read more here .
In spring, observation is more important than ringing, but in autumn migration observation and ringing are equally important and complement each other when collecting observational material. About 10,000 birds are ringed at Halias every year, mainly titmice. The main ringing season is from mid-July to mid-November.. SUMMARY: Daily bird observations carried out between 1970 and 2019 (The original dataset includes mammal sightings, but as this where only introduced in 2020, the dataset has been clipped at 2019). Counts consisted of one to seven observers trapping birds for ringing, and counting birds in migratory flight and those resting at the Hanko observatory. The combination of all observation activities including the number of ringed birds resulted in a daily bird count.
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