The little egrets in europe are migratory birds who winter in africa 小白鹭在欧洲是夏候鸟，南飞至非洲过冬，在其馀地方的都是留鸟。
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Among these species , around 100 are residents , 120 are winter visitors , 120 are passage migrants and 80 are summer visitors 当中留鸟约有100种，冬候鸟约有120种，过境迁徙鸟约有120种，夏候鸟约有80种。
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Summer visitors . a small number of waterbirds migrate to hong kong in summer to breed such as the yellow bittern that arrives in april and depart from september 夏候鸟小部份水鸟会在夏天迁徙到香港繁殖，例如在四月到港，九月离港的黄斑苇? 。
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Among all the birds breeding in the region ( including residents and summer breeders ) , 109 species are distributed in the oriental realm , 3 species in the palaeartic realm and 24 species are widely distributed 本区鸟类具有明显的东洋界特点，在本区繁殖鸟（留鸟和夏候鸟）中，东洋界鸟类109种，广布种24种，古北种3种。
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The hatchlings are altrucial and fledging periods ranged from 29 to 32 days . the research also testified the breeding of the swinhoes egret in south china which bred on vegetated , unmanned islands , and was a summer visitor to the south china area 雏鸟晚成性，离巢日29 - 32 。证实黄嘴白鹭繁殖于华南，属于华南地区的夏候鸟，其营巢只发生在有植被分布的无居民岛屿。
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Integrating the result done by songxianjun in 1996 , 194 bird species , belonging to 36 families 11 orders were recorded at southern fujian mangrove areas . among them , 120 species were paleartics , 55 species were oriental and 19 species were wide distributive species ; 84 species were songbirds , 62 species were waders , 23 species were waterfowl , 14 species were climbing - bird , 7 species were raptor and 4 species were land - bird ; 85 species were wintering , 59 species were resident , 39 species were traveling and llspecies were summering ; 14 species were national conservation bird , 53 species were migrant protecting both by chinese and australia , 94 species were migrant protecting both by chinese and japanese 区系地理分布上古北界种类120种、东洋界种类55种、广布种19种；生态类群上鸣禽84种、涉禽62种、游禽23种、攀禽14种、猛禽7种、陆禽4种；居留型上冬候鸟85种、留鸟59种、旅鸟39种、夏候鸟11种；国家级重点保护鸟类14种、中澳联合保护候鸟53种、中日联合保护候鸟94种。
