Philadelphia Science Wildlife 
10,000 Birds
AUGUST 2, 2019
But in the mid-eighteenth century, the science of horticultural hybridization produced successful crosses of Vitis vinifera with native American grapes, resulting in hardier cultivars resistant to New World diseases but with more desirable qualities for winemaking.
10,000 Birds
DECEMBER 7, 2019
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. Mark Hatfield Marine Science Center and Estuary Trail. Jamaica Bay Wildlife Refuge.
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10,000 Birds
SEPTEMBER 2, 2017
Ra’s al-Khor Wildlife Sanctuary. Merritt Island NWR–Black Point Wildlife Dr. 08 Jan 2017. Ra’s al-Khor Wildlife Sanctuary. Ra’s al-Khor Wildlife Sanctuary–Flamingo Hide. Merritt Island NWR–Black Point Wildlife Dr. 08 Jan 2017. Ra’s al-Khor Wildlife Sanctuary.
10,000 Birds
MARCH 3, 2018
Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Bonaparte’s Gull – Chroicocephalus philadelphia. Mark Hatfield Marine Science Center and Estuary Trail. San Joaquin Wildlife Sanctuary.
10,000 Birds
MAY 6, 2018
Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Jamaica Bay Wildlife Refuge. Bonaparte’s Gull – Chroicocephalus philadelphia. Mark Hatfield Marine Science Center and Estuary Trail.
10,000 Birds
NOVEMBER 3, 2018
Trinidad Lake SP–Watchable Wildlife Trail. Ra’s al-Khor Wildlife Sanctuary–Flamingo Hide. Jamaica Bay Wildlife Refuge–East Pond. San Joaquin Wildlife Sanctuary. San Joaquin Wildlife Sanctuary. Jamaica Bay Wildlife Refuge–East Pond. Jamaica Bay Wildlife Refuge.
10,000 Birds
OCTOBER 6, 2018
Ra’s al-Khor Wildlife Sanctuary–Flamingo Hide. Jamaica Bay Wildlife Refuge–East Pond. San Joaquin Wildlife Sanctuary. San Joaquin Wildlife Sanctuary. Jamaica Bay Wildlife Refuge–East Pond. Jamaica Bay Wildlife Refuge. Tuttle Marsh Wildlife Area. Malheur NWR–Headquarters.
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