[{"data":1,"prerenderedAt":193},["ShallowReactive",2],{"glossary_en:\u002Fslovar\u002Fproletnye-ptitsy":3,"alt-locale:glossary_en:\u002Fslovar\u002Fproletnye-ptitsy":94,"section-listing:glossary_en:\u002Fslovar":95,"section-listing:disabled":188,"related-covers:en:\u002Fslovar\u002Fmigraciya-ptic|\u002Fslovar\u002Fmigracionnyi-put|\u002Fslovar\u002Fbirdwatching":189},{"id":4,"title":5,"body":6,"coverImage":57,"description":58,"extension":59,"faq":60,"imagePrompt":67,"meta":68,"navigation":69,"order":70,"pageType":71,"path":72,"publishedAt":73,"readingMinutes":74,"relatedLinks":75,"seo":88,"sitemap":91,"stem":92,"tags":70,"updatedAt":70,"__hash__":93},"glossary_en\u002Fslovar\u002Fproletnye-ptitsy.md","Passage Migrants",{"type":7,"value":8,"toc":51},"minimark",[9,14,29,37,41,48],[10,11,13],"h2",{"id":12},"definition","Definition",[15,16,17,18,22,23,28],"p",{},"A ",[19,20,21],"strong",{},"passage migrant"," is a bird recorded in a region only while it is traveling through — not because it breeds or winters there, but because the region sits along the route between a breeding range and a wintering range located elsewhere. Many wader species in the ",[24,25,27],"a",{"href":26},"\u002Fen\u002Fsemeystva\u002Frzhankovye","Charadriidae family"," pass through Russian and European coasts and river valleys in exactly this way each spring and autumn, moving between Arctic breeding grounds and wintering areas as far south as sub-Saharan Africa, without ever nesting or overwintering at the intermediate stopover sites where birdwatchers actually see them.",[15,30,31,32,36],{},"The same species can be a passage migrant in one part of a country and a breeding ",[24,33,35],{"href":34},"\u002Fen\u002Fslovar\u002Fpereletnye-ptitsy","migratory bird"," in another — the distinction depends entirely on the specific location, not on the species as a whole. A wader breeding on the Arctic tundra of the Russian Far North is a passage migrant anywhere further south that it merely stops to refuel, but a full breeding resident on its actual tundra nesting grounds.",[10,38,40],{"id":39},"stopover-sites-and-timing","Stopover sites and timing",[15,42,43,44,47],{},"Passage migrants concentrate at ",[19,45,46],{},"stopover sites"," — estuaries, river deltas, large lakes, and other wetlands that offer abundant food for refueling mid-journey. Because a wide funnel of breeding populations can converge on the same narrow stopover corridor, these sites often show far higher species diversity and total numbers during a few concentrated weeks of spring or autumn passage than at any other time of year, including the local breeding season.",[15,49,50],{},"Passage windows are typically shorter and more sharply peaked than breeding-season presence: a wader stopover might see numbers build over a week, peak for a few days, and drop off almost as quickly as the birds continue their journey, timed by conditions at both the breeding grounds ahead and the wintering grounds still to come.",{"title":52,"searchDepth":53,"depth":53,"links":54},"",2,[55,56],{"id":12,"depth":53,"text":13},{"id":39,"depth":53,"text":40},"\u002Fimages\u002Fslovar\u002Fproletnye-ptitsy.png","A passage migrant is a bird seen in a region only briefly, while traveling between a breeding range and a wintering range that both lie elsewhere.","md",[61,64],{"q":62,"a":63},"How is a passage migrant different from a migratory bird?","A migratory bird breeds in the region you're observing it in and only leaves for winter — it's a resident breeder for part of the year. A passage migrant never breeds or winters in that region at all; it only stops there briefly, usually to rest and refuel, while moving between a breeding range and a wintering range that both lie somewhere else entirely.",{"q":65,"a":66},"Why do passage migrants matter for birdwatching sites?","Coastal wetlands, river deltas, and other stopover sites can host far more species and individuals during spring and autumn passage than during the breeding season itself, since birds from a wide geographic area funnel through the same narrow corridor or refueling habitat on their way past — making passage periods the richest birdwatching windows at many sites.","Photorealistic wildlife photo, a small mixed flock of Charadriidae wading birds resting and feeding at a muddy estuary shoreline during a stopover, wings folded, one bird stretching a leg, distant tide line and reflective wet mud extending to the horizon, soft grey overcast light typical of an autumn coastal stopover, 16:9",{},true,null,"glossary","\u002Fslovar\u002Fproletnye-ptitsy","14.07.2026",1,[76,80,84],{"label":77,"path":78,"description":79},"Bird migration","\u002Fslovar\u002Fmigraciya-ptic","Why and how birds migrate",{"label":81,"path":82,"description":83},"Migration flyway","\u002Fslovar\u002Fmigracionnyi-put","The specific route a population follows between ranges",{"label":85,"path":86,"description":87},"Birdwatching","\u002Fslovar\u002Fbirdwatching","The practice of observing wild birds",{"title":89,"description":90},"Passage Migrants — definition and stopover sites","What a passage migrant is: a bird seen only briefly while traveling through a region between a breeding and wintering range located elsewhere.",{"loc":72},"slovar\u002Fproletnye-ptitsy","Kixla1ciW6zvhm27XSPEF8Gv6kvqpMrWdERjEsG1gLk",{"ru":69,"es":69},[96,101,105,110,115,118,123,128,133,138,143,147,152,157,162,167,172,173,178,183],{"title":97,"description":98,"path":99,"coverImage":100,"publishedAt":73,"order":70},"Bird Feeder","A bird feeder provides supplementary food, most valuably in winter, and lets birdwatchers observe species up close — but it needs regular cleaning to avoid spreading disease.","\u002Fslovar\u002Fkormushka-dlya-ptic","\u002Fimages\u002Fslovar\u002Fkormushka-dlya-ptic.png",{"title":102,"description":103,"path":78,"coverImage":104,"publishedAt":73,"order":70},"Bird Migration","Bird migration is the regular, seasonal movement of birds between breeding and non-breeding ranges — driven by food availability and daylight, not simply cold weather.","\u002Fimages\u002Fslovar\u002Fmigraciya-ptic.png",{"title":106,"description":107,"path":108,"coverImage":109,"publishedAt":73,"order":70},"Bird Ringing","Bird ringing (banding) attaches a small, uniquely numbered metal or plastic ring to a bird's leg, allowing individuals to be tracked across recaptures and sightings.","\u002Fslovar\u002Fkolcevanie-ptic","\u002Fimages\u002Fslovar\u002Fkolcevanie-ptic.png",{"title":111,"description":112,"path":113,"coverImage":114,"publishedAt":73,"order":70},"Bird of Prey (Raptor)","A bird of prey, or raptor, hunts live vertebrate prey using strong grasping feet and a hooked bill — a functional grouping spanning several unrelated families, including falcons, hawks, and owls.","\u002Fslovar\u002Fpernatyi-hishchnik","\u002Fimages\u002Fslovar\u002Fpernatyi-hishchnik.png",{"title":85,"description":116,"path":86,"coverImage":117,"publishedAt":73,"order":70},"Birdwatching is the recreational observation and identification of wild birds, ranging from casual garden watching to structured trips to specific sites and seasons.","\u002Fimages\u002Fslovar\u002Fbirdwatching.png",{"title":119,"description":120,"path":121,"coverImage":122,"publishedAt":73,"order":70},"Conservation Status of Birds (LC\u002FNT\u002FVU\u002FEN\u002FCR)","Conservation status is a standardized IUCN category — from Least Concern to Extinct — measuring how close a species is to disappearing across its entire range.","\u002Fslovar\u002Fohrannyi-status-ptic","\u002Fimages\u002Fslovar\u002Fohrannyi-status-ptic.png",{"title":124,"description":125,"path":126,"coverImage":127,"publishedAt":73,"order":70},"Downy Chick","A downy chick is a hatchling covered in soft, fluffy natal down rather than true feathers — its exact appearance and mobility depend on whether the species is precocial or altricial.","\u002Fslovar\u002Fpuhovoi-ptenec","\u002Fimages\u002Fslovar\u002Fpuhovoi-ptenec.png",{"title":129,"description":130,"path":131,"coverImage":132,"publishedAt":73,"order":70},"Egg Clutch","A clutch is the full set of eggs a female bird lays in a single nesting attempt — its size varies by species from a single egg to over a dozen.","\u002Fslovar\u002Fkladka-yaic","\u002Fimages\u002Fslovar\u002Fkladka-yaic.png",{"title":134,"description":135,"path":136,"coverImage":137,"publishedAt":73,"order":70},"Egg Incubation","Incubation is the process of keeping eggs at a stable, warm temperature until they hatch, usually by direct body contact through a bare, blood-vessel-rich brood patch.","\u002Fslovar\u002Finkubaciya-yaic","\u002Fimages\u002Fslovar\u002Finkubaciya-yaic.png",{"title":139,"description":140,"path":141,"coverImage":142,"publishedAt":73,"order":70},"Endemic Species","An endemic species occurs naturally in one specific geographic area and nowhere else in the world, making it a priority for conservation attention.","\u002Fslovar\u002Fendemik","\u002Fimages\u002Fslovar\u002Fendemik.png",{"title":144,"description":145,"path":82,"coverImage":146,"publishedAt":73,"order":70},"Migration Flyway","A migration flyway is the broad geographic corridor a population of migratory birds consistently follows between breeding and wintering ranges, often shaped by coastlines and mountains.","\u002Fimages\u002Fslovar\u002Fmigracionnyi-put.png",{"title":148,"description":149,"path":150,"coverImage":151,"publishedAt":73,"order":70},"Migratory Birds","Migratory birds leave their breeding range for a separate wintering range on a predictable seasonal schedule, returning to breed in the same area each spring.","\u002Fslovar\u002Fpereletnye-ptitsy","\u002Fimages\u002Fslovar\u002Fpereletnye-ptitsy.png",{"title":153,"description":154,"path":155,"coverImage":156,"publishedAt":73,"order":70},"Molt in Birds","Molt is the periodic shedding and replacement of feathers, essential for flight efficiency, insulation, and — in many species — seasonal changes in plumage color.","\u002Fslovar\u002Flinka-u-ptic","\u002Fimages\u002Fslovar\u002Flinka-u-ptic.png",{"title":158,"description":159,"path":160,"coverImage":161,"publishedAt":73,"order":70},"Nest Box","A nest box is an artificial cavity built to attract hole-nesting birds where natural tree cavities are scarce, from starling boxes to smaller tit and sparrow boxes.","\u002Fslovar\u002Fskvorechnik","\u002Fimages\u002Fslovar\u002Fskvorechnik.png",{"title":163,"description":164,"path":165,"coverImage":166,"publishedAt":73,"order":70},"Nesting","Nesting is the full process of building or selecting a nest site, laying and incubating eggs, and raising chicks to independence — behavior that varies enormously between bird families.","\u002Fslovar\u002Fgnezdovanie","\u002Fimages\u002Fslovar\u002Fgnezdovanie.png",{"title":168,"description":169,"path":170,"coverImage":171,"publishedAt":73,"order":70},"Nomadic Birds","Nomadic (irruptive) birds move irregularly and unpredictably between areas in response to fluctuating food supply, rather than following a fixed seasonal migration.","\u002Fslovar\u002Fkochuyushchie-ptitsy","\u002Fimages\u002Fslovar\u002Fkochuyushchie-ptitsy.png",{"title":5,"description":58,"path":72,"coverImage":57,"publishedAt":73,"order":70},{"title":174,"description":175,"path":176,"coverImage":177,"publishedAt":73,"order":70},"Precocial and Altricial Birds","Precocial chicks hatch mobile, feathered, and able to feed themselves within hours; altricial chicks hatch blind, naked, and entirely dependent on their parents.","\u002Fslovar\u002Fvyvodkovye-i-ptencovye-ptitsy","\u002Fimages\u002Fslovar\u002Fvyvodkovye-i-ptencovye-ptitsy.png",{"title":179,"description":180,"path":181,"coverImage":182,"publishedAt":73,"order":70},"Range (Habitat Range)","A species' range is the total geographic area where it occurs, distinct from habitat, which describes the type of environment it uses within that area.","\u002Fslovar\u002Fareal-obitaniya","\u002Fimages\u002Fslovar\u002Fareal-obitaniya.png",{"title":184,"description":185,"path":186,"coverImage":187,"publishedAt":73,"order":70},"Resident Birds","Resident birds stay within the same general area year-round, neither migrating to a separate wintering range nor undertaking large nomadic movements.","\u002Fslovar\u002Fosedlye-ptitsy","\u002Fimages\u002Fslovar\u002Fosedlye-ptitsy.png",[],[190,191,192],{"label":77,"path":78,"description":79,"coverImage":104},{"label":81,"path":82,"description":83,"coverImage":146},{"label":85,"path":86,"description":87,"coverImage":117},1787114564168]