A kind of pigeon standing-cup for preventing from altering,The foot ring is the design of both ends open tubular and thin wall-type,And enable and locate to be in slightly narrow shape among it,Or the obstruction design at one end of foot ring equipped with single order portion simultaneously,And its side has the embedded portion for the RF device for being embedded with electronic wafer,And then through this thin wall-type,And intermediate narrow design,The young dove for dressing the foot ring is allowed to grow up to Hou,Foot ring is allowed to be difficult to not remove at the ankle by dove foot outside,More because of the design of thin wall-type,Allow cribber be difficult to or even can not to foot ring carry out reaming adulterium,Or be easy to cause the breakage of foot ring when altering and be not available,To reach better tamper evidence effect.一種防止變造的鴿子腳環，該腳環為兩端開放筒狀而薄壁式的設計，且令其中間處呈略為狹窄狀，或同時在腳環的一端處設有一階部的阻礙設計、以及其旁側具有埋設有電子晶片之射頻器的埋設部，進而透過此薄壁式、且中間窄小的設計，讓穿戴該腳環的幼鴿長成後，讓腳環難以通過鴿腳的腳踝處而無法取下外，更因薄壁式的設計，讓作弊者難以或甚至無法對腳環進行擴孔變造、或變造時容易導致腳環的破損而無法使用，以達更好的防弊效果。
