Signs of Spring Migration in Costa Rica
10,000 Birds
MARCH 27, 2021
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. All the way to Alaska maybe? Wilson’s Plovers are in Breeding Plumage. More Birds are Singing. Where will they go?
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