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Converting the M12K Musselman to Have Double
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aluminum arrived Association Edinboro University attract martins babies banded banders Barn Swallow birds blowfly bluebirds breeding Chimney Swifts colony site colony sites compartments Conservation Association Edinboro crescent crickets decoys Edinboro University Editorial eggs entrance hole European Starlings feeding feet female fledged flying four gourd rack ground habitat hatched hawks House Sparrows House Wren insects inside July June lava tube look Louise Chambers martin colony Martin Conservation Association martin house mealworms ment mentor natural gourds nest cavity nest checks nest material nest replacements nestlings owl guards pairs of martins parents Park Pennsylvania perch plastic PMCA PMCA's pole guards porch predators Purple Mar Purple Martin Conservation Purple Martin Update season snake species SREH SREH's starling-resistant entrance SuperGourds tins tion trap Tree Swallows Trio Castle trying watch weather weeks West Nile Virus Wildlife wooden yard young fledged