Conservation
Bottleneck
A place where migrating birds are funnelled together, such as a strait, isthmus or mountain pass.
Try a bird, a place or a month: "hornbill", "Costa Rica", "shorebirds".
Try a bird, a place or a month: "hornbill", "Costa Rica", "shorebirds".
Conservation
A place where migrating birds are funnelled together, such as a strait, isthmus or mountain pass.