I present the second record of Shiny Cowbird (Molothrus bonariensis) parasitism of the Black-chinned Siskin (Carduelis barbata). The last recorded observation was in 1929. This also represents the northernmost nesting record of the Black-chinned Siskin.
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1 June 2003
New Record of Shiny Cowbird (Molothrus bonariensis) Parasitism of Black-chinned Siskins (Carduelis barbata)
Andrea Alejandra Astié
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