article thumbnail

Signs of Spring Migration in Costa Rica

10,000 Birds

Other warblers such as Chestnut-sided and Black-throated Green are still around but based on their breeding plumage, they will be quick to leave for the north any day now. Wilson’s Plovers are in Breeding Plumage. More Birds are Singing. Spring in Costa Rica is more of a transfer from dry to wet than from cold to hot.