USGS · 5222401
Industrial strength herons: The Black-crowns of Baltimore
Abstract
The largest night-heron colony in Maryland is located at the foot of the Key Bridge in Dundalk, Maryland, in an industrial area. Foraging herons were followed from the colony during May-July, . Most birds followed landed near industrial/urban sites. Availability of perches and lights (at night) may serve to enhance the heron's prey capture success.
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R.M. Erwin, V.P. Anders, K. Miles-Iverson. 1990. Industrial strength herons: The Black-crowns of Baltimore. https://pubs.usgs.gov/publication/5222401
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