Cattle Lovebirds Philadelphia Science 
10,000 Birds
DECEMBER 7, 2019
Red-headed Lovebird – Agapornis pullarius. Mourning Warbler – Geothlypis philadelphia. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Philadelphia Vireo – Vireo philadelphicus.
10,000 Birds
SEPTEMBER 2, 2017
Cattle Egret – Bubulcus ibis. Mark Hatfield Marine Science Center and Estuary Trail. Bonaparte’s Gull – Chroicocephalus philadelphia. Rosy-faced Lovebird – Agapornis roseicollis. Cattle Tyrant – Machetornis rixosa. Philadelphia Vireo – Vireo philadelphicus. 01 Jan 2017.
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