Chandeleur Islands survey 17 May 2019

May 17, 2019 03:14 PM - May 17, 2019 10:46 PM
| Latitude: 29.904 | Longitude: -88.824 | Radius (m): 5550 | Distance traveled: 9350m | Duration: 452 minutes | Number of observers: 2 |

Matt Brady and I helped with a Red Knot Survey for BTNEP, walking a stretch of beach from here 29.934057, -88.822640 to here 29.868357, -88.830746 in a north to south direction. This was 5.8 miles on google earth, but the eBird app recorded 6.3 miles. We spent most of the time carefully counting and surveying Red Knots, particularly for banded individuals, but took great care to count all birds and photograph as many as possible. Although most of our walking was on the gulf side of the island, we crossed over to the bay side wherever there were mudflats visible and looked for shorebirds there, checking also some of the patches of vegetation of land birds and nesting sea birds, though the island was rather devoid of the former. We also looked for many other organisms as time and energy allowed. eBird list is here: https://ebird.org/view/checklist/S56430414. Weather was generally hot and uncomfortable, though not nearly as bad as mid-summer weather. Temps early on were around 70, rising to the mid 80s by the time we left, though it felt hotter. Completely clear skies, with a few scattered clouds late in the survey. Light winds out of the SE, building to ~5 knots by the time we left. Habitat was largely open white sand beach, with lots of shells in places forming a barrier near the gulf side. This occasionally created some standing water on the mudflats on the bay side of the barrier with shorebird habitat. Tide was dropping as we surveyed, exposing mudflats on the bay side, mostly in channels through extensive salt marsh. Between the salt marsh and the gulf shore were occasional patches of vegetation dominated by grasses and Baccaris, usually inhabited by nesting Laughing Gulls. Many shore birds and gulls were feeding on the shore on the gulf side, with many more roosting on the upper beach.

Posted on May 18, 2019 11:39 PM by henicorhina henicorhina

Target List

Observations

Photos / Sounds

What

Chandeleur Gull (Larus argentatus × dominicanus)

Observer

henicorhina

Date

May 17, 2019 04:01 PM CDT

Description

One of many adults, some paired up, seen on a survey of the Chandeleur Islands. Many more photos to come.

Photos / Sounds

What

Brown Rangia (Rangia flexuosa)

Observer

henicorhina

Date

May 17, 2019 10:26 AM CDT

Photos / Sounds

What

Incongruous Ark (Anadara brasiliana)

Observer

henicorhina

Date

May 17, 2019 10:26 AM CDT

Photos / Sounds

What

Stout Tagelus (Tagelus plebeius)

Observer

henicorhina

Date

May 17, 2019 10:28 AM CDT

Photos / Sounds

What

Lettered Olive (Oliva sayana)

Observer

henicorhina

Date

May 17, 2019 10:28 AM CDT

Photos / Sounds

What

Lightning Whelk (Sinistrofulgur sinistrum)

Observer

henicorhina

Date

May 17, 2019 10:43 AM CDT

Photos / Sounds

What

Sea Purslane (Sesuvium portulacastrum)

Observer

henicorhina

Date

May 17, 2019 10:55 AM CDT

Photos / Sounds

What

Searockets (Genus Cakile)

Observer

henicorhina

Date

May 17, 2019 10:56 AM CDT

Photos / Sounds

What

Giant Atlantic Cockle (Dinocardium robustum)

Observer

henicorhina

Date

May 17, 2019 10:58 AM CDT

Photos / Sounds

What

Virginia Glasswort (Salicornia depressa)

Observer

henicorhina

Date

May 17, 2019 10:57 AM CDT

Photos / Sounds

What

Hays' Rocksnail (Stramonita canaliculata)

Observer

henicorhina

Date

May 17, 2019 11:07 AM CDT

Photos / Sounds

What

Elegant Dosinia (Dosinia concentrica)

Observer

henicorhina

Date

May 17, 2019 11:46 AM CDT

Photos / Sounds

What

Grasses (Family Poaceae)

Observer

henicorhina

Date

May 17, 2019 11:59 AM CDT

Photos / Sounds

What

Common Reed (Phragmites australis)

Observer

henicorhina

Date

May 17, 2019 12:04 PM CDT

Photos / Sounds

What

Groundsel Tree (Baccharis halimifolia)

Observer

henicorhina

Date

May 17, 2019 12:06 PM CDT

Photos / Sounds

Observer

henicorhina

Date

May 17, 2019 12:07 PM CDT

Photos / Sounds

What

Grasses (Family Poaceae)

Observer

henicorhina

Date

May 17, 2019 12:07 PM CDT

Photos / Sounds

What

Stiff Pen Shell (Atrina rigida)

Observer

henicorhina

Date

May 17, 2019 12:32 PM CDT

Photos / Sounds

What

Southern Ribbed Mussel (Geukensia granosissima)

Observer

henicorhina

Date

May 17, 2019 12:38 PM CDT

Photos / Sounds

What

Stout Tagelus (Tagelus plebeius)

Observer

henicorhina

Date

May 17, 2019 12:38 PM CDT

Photos / Sounds

What

Common Water Hyacinth (Pontederia crassipes)

Observer

henicorhina

Date

May 17, 2019 12:47 PM CDT

Photos / Sounds

What

Alternate Tellin (Eurytellina alternata)

Observer

henicorhina

Date

May 17, 2019 12:55 PM CDT

Photos / Sounds

What

Coquina (Donax variabilis)

Observer

henicorhina

Date

May 17, 2019 12:56 PM CDT

Photos / Sounds

What

Incongruous Ark (Anadara brasiliana)

Observer

henicorhina

Date

May 17, 2019 01:01 PM CDT

Photos / Sounds

What

Common Jingle (Anomia simplex)

Observer

henicorhina

Date

May 17, 2019 01:01 PM CDT

Description

Or maybe just a shell fragment?

Photos / Sounds

What

Atlantic Calico Scallop (Argopecten gibbus)

Observer

henicorhina

Date

May 17, 2019 01:01 PM CDT

Description

Or maybe a Bay Scallop?

Photos / Sounds

What

Angelwing (Cyrtopleura costata)

Observer

henicorhina

Date

May 17, 2019 01:02 PM CDT

Photos / Sounds

What

Black Mangrove (Avicennia germinans)

Observer

henicorhina

Date

May 17, 2019 01:10 PM CDT

Photos / Sounds

What

Sea Ox-Eye (Borrichia frutescens)

Observer

henicorhina

Date

May 17, 2019 01:11 PM CDT

Photos / Sounds

What

False Shark Eye (Neverita delessertiana)

Observer

henicorhina

Date

May 17, 2019 01:46 PM CDT

Photos / Sounds

What

Eastern Oyster (Crassostrea virginica)

Observer

henicorhina

Date

May 17, 2019 01:59 PM CDT

Description

With some other shells mixed in.

Photos / Sounds

What

Florida Fighting Conch (Strombus alatus)

Observer

henicorhina

Date

May 17, 2019 02:13 PM CDT

Photos / Sounds

What

Atlantic Horseshoe Crab (Limulus polyphemus)

Observer

henicorhina

Date

May 17, 2019 02:15 PM CDT

Photos / Sounds

What

True Horse Flies (Genus Tabanus)

Observer

henicorhina

Date

May 17, 2019 02:16 PM CDT

Photos / Sounds

What

Bay Barnacle (Amphibalanus improvisus)

Observer

henicorhina

Date

May 17, 2019 02:16 PM CDT

Photos / Sounds

Observer

henicorhina

Date

May 17, 2019 02:28 PM CDT

Photos / Sounds

What

Incongruous Ark (Anadara brasiliana)

Observer

henicorhina

Date

May 17, 2019 02:29 PM CDT

Photos / Sounds

What

Atlantic Blue Crab (Callinectes sapidus)

Observer

henicorhina

Date

May 17, 2019 02:30 PM CDT

Photos / Sounds

What

Marsh Periwinkle (Littoraria irrorata)

Observer

henicorhina

Date

May 17, 2019 02:55 PM CDT

Photos / Sounds

What

Channeled Duck Clam (Raeta plicatella)

Observer

henicorhina

Date

May 17, 2019 03:09 PM CDT

Photos / Sounds

What

Speckled Swimming Crab (Arenaeus cribrarius)

Observer

henicorhina

Date

May 17, 2019 03:26 PM CDT

Photos / Sounds

What

Western Gulf Stone Crab (Menippe adina)

Observer

henicorhina

Date

May 17, 2019 03:26 PM CDT

Description

The little claw.

Photos / Sounds

What

Loblolly Pine (Pinus taeda)

Observer

henicorhina

Date

May 17, 2019 03:35 PM CDT

Photos / Sounds

What

Turtle Barnacle (Chelonibia testudinaria)

Observer

henicorhina

Date

May 17, 2019 03:57 PM CDT

Description

Growing on a dead sea turtle

Photos / Sounds

No photos or sounds

What

Seaside Dragonlet (Erythrodiplax berenice)

Observer

henicorhina

Date

May 17, 2019 04:35 PM CDT

Description

Small dragonfly in salt marsh but was unable to photograph. Mostly solid black with prominent pale orange markings down the length of the abdomen.

Photos / Sounds

What

American Oystercatcher (Haematopus palliatus)

Observer

henicorhina

Date

May 17, 2019 10:16 AM CDT

Photos / Sounds

What

Reddish Egret (Egretta rufescens)

Observer

henicorhina

Date

May 17, 2019 10:17 AM CDT

Photos / Sounds

What

Least Tern (Sternula antillarum)

Observer

henicorhina

Date

May 17, 2019 10:19 AM CDT

Photos / Sounds

No photos or sounds

What

Whimbrel (Numenius phaeopus)

Observer

henicorhina

Date

May 17, 2019 02:55 PM CDT

Photos / Sounds

No photos or sounds

What

Clapper Rail (Rallus crepitans)

Observer

henicorhina

Date

May 17, 2019 02:58 PM CDT

Photos / Sounds

No photos or sounds

What

Great Egret (Ardea alba)

Observer

henicorhina

Date

May 17, 2019 02:45 PM CDT

Photos / Sounds

No photos or sounds

What

Tricolored Heron (Egretta tricolor)

Observer

henicorhina

Date

May 17, 2019 02:30 PM CDT

Photos / Sounds

No photos or sounds

What

Barn Swallow (Hirundo rustica)

Observer

henicorhina

Date

May 17, 2019 02:30 PM CDT

Photos / Sounds

What

Caspian Tern (Hydroprogne caspia)

Observer

henicorhina

Date

May 17, 2019 10:33 AM CDT

Photos / Sounds

What

Black-bellied Plover (Pluvialis squatarola)

Observer

henicorhina

Date

May 17, 2019 10:30 AM CDT

Description

With some other stuff

Photos / Sounds

What

Western Willet (Tringa semipalmata ssp. inornata)

Observer

henicorhina

Date

May 17, 2019 10:36 AM CDT

Description

One basic-plumage-type bird on beach with Black-bellied Plovers and Red Knots. Compared to the nominate birds that were all over the salt marsh, this bird was distinctly lankier overall, particularly a longer leg and bill. Overall paler gray than a nominate. Poor photos

Photos / Sounds

What

Chandeleur Gull (Larus argentatus × dominicanus)

Observer

henicorhina

Date

May 17, 2019 10:39 AM CDT

Photos / Sounds

What

Coastal Tiger Beetle (Ellipsoptera hamata)

Observer

henicorhina

Date

May 17, 2019 10:48 AM CDT

Photos / Sounds

What

Snowy Egret (Egretta thula)

Observer

henicorhina

Date

May 17, 2019 10:49 AM CDT

Photos / Sounds

What

Gull-billed Tern (Gelochelidon nilotica)

Observer

henicorhina

Date

May 17, 2019 10:51 AM CDT

Photos / Sounds

What

Common Tern (Sterna hirundo)

Observer

henicorhina

Date

May 17, 2019 11:03 AM CDT

Photos / Sounds

What

Semipalmated Plover (Charadrius semipalmatus)

Observer

henicorhina

Date

May 17, 2019 11:12 AM CDT

Photos / Sounds

What

Dunlin (Calidris alpina)

Observer

henicorhina

Date

May 17, 2019 11:14 AM CDT

Photos / Sounds

What

Semipalmated Sandpiper (Calidris pusilla)

Observer

henicorhina

Date

May 17, 2019 11:14 AM CDT

Photos / Sounds

What

Marbled Godwit (Limosa fedoa)

Observer

henicorhina

Date

May 17, 2019 11:25 AM CDT

Description

Mixed in with the skimmers

Photos / Sounds

What

Short-billed Dowitcher (Limnodromus griseus)

Observer

henicorhina

Date

May 17, 2019 11:15 AM CDT

Photos / Sounds

What

Black Skimmer (Rynchops niger)

Observer

henicorhina

Date

May 17, 2019 11:28 AM CDT

Photos / Sounds

What

Black Tern (Chlidonias niger)

Observer

henicorhina

Date

May 17, 2019 12:14 PM CDT

Photos / Sounds

What

Black-necked Stilt (Himantopus mexicanus)

Observer

henicorhina

Date

May 17, 2019 12:00 PM CDT

Photos / Sounds

What

Sanderling (Calidris alba)

Observer

henicorhina

Date

May 17, 2019 12:21 PM CDT

Photos / Sounds

What

Eastern Willet (Tringa semipalmata ssp. semipalmata)

Observer

henicorhina

Date

May 17, 2019 12:34 PM CDT

Photos / Sounds

What

Saltmarsh Meadow Katydid (Conocephalus spartinae)

Observer

henicorhina

Date

May 17, 2019 01:06 PM CDT

Photos / Sounds

What

Coastal Tiger Beetle (Ellipsoptera hamata)

Observer

henicorhina

Date

May 17, 2019 01:08 PM CDT

Photos / Sounds

What

Sooty Tern (Onychoprion fuscatus)

Observer

henicorhina

Date

May 17, 2019 01:14 PM CDT

Photos / Sounds

What

Red Knot (Calidris canutus)

Observer

henicorhina

Date

May 17, 2019 01:30 PM CDT

Photos / Sounds

What

Herring Gull (Larus argentatus)

Observer

henicorhina

Date

May 17, 2019 01:54 PM CDT

Description

At least mostly a Herring, could be some old hybridization with Kelp.

Photos / Sounds

What

Forster's Tern (Sterna forsteri)

Observer

henicorhina

Date

May 17, 2019 02:02 PM CDT

Photos / Sounds

What

Coastal Tiger Beetle (Ellipsoptera hamata)

Observer

henicorhina

Date

May 17, 2019 02:57 PM CDT

Photos / Sounds

What

Salt Marsh Skipper (Panoquina panoquin)

Observer

henicorhina

Date

May 17, 2019 03:10 PM CDT

Photos / Sounds

What

Coastal Tiger Beetle (Ellipsoptera hamata)

Observer

henicorhina

Date

May 17, 2019 03:31 PM CDT

Photos / Sounds

What

American Avocet (Recurvirostra americana)

Observer

henicorhina

Date

May 17, 2019 04:15 PM CDT

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