Often parasitized by cowbirds, the yellow warbler has found a way around this by burying the cowbird egg and sometimes their own under another nest layer. Sometimes a nest can be found with up to 6 layers, each with a cowbird in it.
Nature inspires awe!
These are some papers that I refer to often:
"How can we be responsible stewards and conservators of threatened habitats when we do not even know the resident fauna?"
Dr. Dan Young
UW- Madison Entomology
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