NYC-based photographer of birds & all things under the sea, especially nudibranchs.

Avian observations pre-2020 mainly on eBird: https://ebird.org/profile/OTAxMzc3/world

https://www.instagram.com/zahnerphoto_birds/ (birds)

https://www.instagram.com/zahnerphoto/ (underwater)

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Observations of mine that were firsts for the iNat database:

Nov 2021
Grasshopper × Savannah Sparrow (Ammodramus savannarum × Passerculus sandwichensis): https://www.inaturalist.org/observations/100624062

Jul 2021
Flameback Angelfish (Centropyge aurantonotus): https://www.inaturalist.org/observations/89327938
Bantam Bass (Parasphyraenops incisus): https://www.inaturalist.org/observations/91316027

Apr 2020
Haplosyllis gula: https://www.inaturalist.org/observations/41937451

Jan 2020
Thuridilla malaquita: https://www.inaturalist.org/observations/38108405
Antillean Scallop (Antillipecten antillarum): https://www.inaturalist.org/observations/38108402

Oct 2019
Decoradrillia pulchella: https://www.inaturalist.org/observations/35024790
Papyridea semisulcata: https://www.inaturalist.org/observations/34983849

Aug 2019
Diodora variegata: https://www.inaturalist.org/observations/34983863

Jun 2019
Ophiothela mirabilis: https://www.inaturalist.org/observations/27341347
Atys caribaeus: https://www.inaturalist.org/observations/27271126

Feb 2019
Felimare fortunensis: https://www.inaturalist.org/observations/20192457
Harlequin Pipefish (Halicampus ensenadae): https://www.inaturalist.org/observations/20233085
Bumblebee Two-spot Octopus (Octopus hummelincki): https://www.inaturalist.org/observations/20234192
Banded Tube-dwelling Anemone (Isarachnanthus nocturnus): https://www.inaturalist.org/observations/20173770
Nanuca sebastiani: https://www.inaturalist.org/observations/20020802
Coryphellina hamanni: https://www.inaturalist.org/observations/20023468
Elysia pratensis: https://www.inaturalist.org/observations/20280909
Periclimenes harringtoni: https://www.inaturalist.org/observations/20286426
Starksia williamsi: https://www.inaturalist.org/observations/20326004

Jan 2019
Tusked Goby (Risor ruber): https://www.inaturalist.org/observations/19796063
Shortstripe Goby (Elacatinus chancei): https://www.inaturalist.org/observations/19982281
Black Morph Cyphoma (Cyphoma cassidyae): https://www.inaturalist.org/observations/19988204
Thuridilla mazda: https://www.inaturalist.org/observations/19976102
Camachoaglaja berolina: https://www.inaturalist.org/observations/19976456
Navanax gemmatus: https://www.inaturalist.org/observations/19914534
Gaudy Clown Crab (Platypodiella spectabilis): https://www.inaturalist.org/observations/19976659
Felimare acriba: https://www.inaturalist.org/observations/19994366
Bulbaeolidia oasis: https://www.inaturalist.org/observations/19899704
Elysia cornigera: https://www.inaturalist.org/observations/19795743