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Fig. 1 | Movement Ecology

Fig. 1

From: The effect of weather on the decision to migrate from stopover sites by autumn-migrating ducks

Fig. 1

Weather surveillance radar in Lincoln, Illinois (KILX) reveals a representative departure of approximately 20,000 ducks from our Illinois River study area, Illinois, USA, at 2340, 08 November 2008 (0.5° elevation reflectivity scan). The identity of these aerofauna was accomplished through targeted ground-truthing using aerial inventories of the stopover site and thermal infrared and portable radar observations along the flight path (O’Neal et al. 2010). Black arrow indicates departure track (150°)

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