• Птиците в България
    Птиците срещащи се в България
    Всеки вид с кратко описание, снимки и видео в естесвена среда. Снимки на местообитанията, които обитава.
  • Над 400 вида птици в България
    426 вида птици в България!
    Знаете ли, че България е на второ място в Европа по видово разнообразие на птици?
  • On-line определител на птиците
    On-line определител на птиците!
    Открий и познай птицата, която си видял.
  • Хиляди снимки на птици
    Хиляди снимки на птици!
    Над 4000 снимки на птици публикувани безвъзмездно от над 150 фотографа.

Order Waders, Gulls, Skuas/Charadriiformes, Family Gulls, Terns/Laridae

Common Tern/Sterna hirundo - Adult

L 34-37 cm (incl. tail-streamers 5-8 on ad.), WS 70- 80cm. Breeds colonially or singly both at coasts and at inland waters (lakes, rivers, etc.). Summer visitor (Apr-Oct), winters in W and S Africa. Food fish. Nest is scrape on ground.
IDENTIFICATION: Very similar to Arctic Tern, but, with practice, separation nearly always possible. Apart from being slightly larger, different structure when perched useful: longer bill (often looking slightly decurved) and head, and longer legs (belly well clear of ground). Different structure also in flight: longer neck/head and slightly broader wings, which appear to be more or less central on body. Hovers, and dives directly for fish. - Adult summer: Bill orange-red with black tip, but note that black tip can be very small, especially by midsummer; underparts pale grey, usually without obvious contrast with white cheek; short tail-streamers not extending beyond wing-tip; outer 4-6 primaries darker than rest, forming dark wedge on upperwing, but note that wedge often is very faint in spring (only a dark ‘notch’ at trailing edge), becoming obvious by midsummer through wear; from below, primaries white with broad, rather diffuse dark trailing edge; translucency strongest on inner primaries. - Adult winter (some start moult in Jul; Arctic not until reaching winter range): White forehead and underparts, dark carpal bar, and all-black bill. - Juvenile: Upperwing has pale squareshaped midwing-panel between narrow grey secondary bar and obvious dark carpal bar; other differences from Arctic include: a little orange at base of bill (bill all black on Arctic from late summer); forehead and upperparts obviously ginger-brown in tone when recently fledged; extensive carpal bar usually visible when perched (smaller on Arctic, usually concealed). - 1stsummer (usually stays in winter range; rare in Europe): White forehead and underparts; blackish bill; wholly or partly retained juvenile wings and tail much worn, giving striking variegated pattern. - 2nd-summer (many stay in winter range, scarce in Europe): Like adult summer, but has immature features such as white on forehead, patchy grey underparts, and blackish bill.
VOICE: Noisy at colonies, including short, sharp ‘kit’, rapid series of quarrelling ‘kt-kt-kt-kt-…’ and typical ‘kierri-kierri-kierri-…’ with variations. Alarm is a disyllabic, drawn-out, downslurred ‘kreee-arrr’ or a sharp ‘chip!’.

Similar species
Find Birds in Bulgaria on Facebook
Къща за гости
Старото Гнездо
Big year
All European birds in one place!
All European birds in one place!
Birdwatching and Wildlife Photography Tours in BULGARIA. Cottage to rent
Bird guide for all European birds
All European birds in one place!
Application for smart phones
Application for smart phones