先把旧来源与当季计划分开
官方资料说明，广东通常从8月迎来先头迁徙鸟，9月至11月进入过境高峰。资料列举金鸻、蒙古沙鸻、铁嘴沙鸻、长趾滨鹬、红颈瓣蹼鹬和黑尾塍鹬等先期到达类群，随后还可能出现更多鸻鹬、琵鹭、鹳和雁鸭。
但原文发布于2025年10月20日，其中30万只以上的估计和两只勺嘴鹬记录均属于当年背景，不能改写成2026年现状。2026年出发必须另查保护地开放、潮汐、天气和最新监测公告。
四种体型与嘴形线索
金鸻体型较紧凑，非繁殖羽上体呈金褐色斑点；铁嘴沙鸻头大、嘴粗厚，腿较长；黑尾塍鹬体型更大、嘴长而近直，飞行时黑尾与白翼带值得观察；勺嘴鹬极小，关键是末端扩大的匙形嘴。
距离、热浪和换羽会让嘴形与羽色失真。疑似勺嘴鹬必须依靠连续清晰影像、行为与专业复核，不能从一张模糊照片确认；保留“滨鹬未定”比制造稀有鸟讯更负责。
潮滩观察不追着水线走
在正式观鸟屋、栈道或公共堤岸等待潮位把鸟带入视野，用单筒望远镜分区扫描。不要下滩、穿越红树林、进入养殖塘埂或为拍飞版驱赶鸟群；迁徙鸟需要连续取食补充能量。
珍稀鸟记录不实时发布精确位置，照片删除定位并延迟公开。鸟群整体抬头、远离或起飞说明干扰已经发生，应立即后退；任何保护区临时封闭和巡护指令优先。
Separate an older source from this season's plan
The official guide says early migrants normally reach Guangdong from August and passage peaks from September through November. It lists Pacific Golden Plover, sand plovers, Long-toed Stint, Red-necked Phalarope and Black-tailed Godwit among early groups, with more shorebirds, spoonbills, storks, geese and ducks later.
The article was published on October 20, 2025. Its estimate of more than 300,000 birds and record of two Spoon-billed Sandpipers belong to that season, not live 2026 conditions. A 2026 visit requires current access, tide, weather and monitoring notices.
Four clues from body and bill
Pacific Golden Plover is compact with golden-brown spotting in non-breeding plumage. Greater Sand Plover has a large head and heavy bill with relatively long legs. Black-tailed Godwit is larger with a long, nearly straight bill, black tail and white wingbar in flight. Spoon-billed Sandpiper is tiny, with a distinctly expanded bill tip.
Distance, heat haze and moult distort shape and colour. A suspected Spoon-billed Sandpiper needs a sequence of clear images, behaviour and expert review; one blurred frame is insufficient. 'Unidentified stint' is more responsible than a false rarity alert.
Watch the tide without following the waterline
Wait in a formal hide, on a boardwalk or public embankment and let the tide bring birds into scope range. Do not enter flats, push through mangroves, use aquaculture banks or flush a flock for flight shots. Migrants need uninterrupted feeding.
Do not live-share an exact rare-bird position. Strip coordinates and delay public posts. A flock raising its heads, moving away or taking flight shows that disturbance has begun; retreat immediately and obey every closure and ranger instruction.