BirdCapeMay.org

Vince Elia, research associate at Cape May Bird Observatory, remarked to me a while ago that, "I'm never not birding." So it is with all birders, I think.


So, for example, while enjoying the Philadelphia Phillies' triumph over the Pirates last night at Citizen's Bank Park in the city, I also enjoyed three Eastern Kingbirds which fed from the cables holding up the screen behind home plate. Seeing these marvelous and very wild birds ensconced in such a human-dominated environment surprised me, a pleasure that far surpassed the expected Rock Pigeons, House Sparrows, and gulls floating overhead, and maybe even the game, too.


During the national anthem, one kingbird sallied repeatedly into left field, snatching up moths barely above the turf. The moths, I guessed, were drawn by and then confused by the stadium lights.


As soon as the players took the field and Jamie Moyer threw his first pitch (a strike), the kingbirds flew steadily towards the left field wall and disappeared over it, not to return that night. They had been present and feeding for at least 45 minutes before that point. I wonder how many fans noticed? It helped, I suppose, to be carrying some fine German optics to watch the game, and the birds. . .

CAPE MAY BIRDING HOTLINE July 28, 2007You have reached the Cape May Birding Hotline, a service of New Jersey Audubon Society’s Cape May Bird Observatory. This week’s message was prepared on Saturday July 28, 2007. Highlights this week include sightings of ROSEATE SPOONBILL, NORTHERN GANNET, GULL-BILLED TERN, BLACK TERN, LESSER BLACK-BACKED GULL, MARBLED GODWIT and LONG-BILLED DOWITCHER.

ANNOUNCEMENT:

We are pleased to announce the launch of CMBO’s new, dynamic website; www.BirdCapeMay.org. This site promises to be a virtual Cape May if you will. With daily to semi-daily sightings reports you can log on to see what is happening in Cape May in real time. Now, you can bird Cape May every day.


Now for the hotline;

EDIT: A report just came in that the ROSEATE SPOONBILL was seen last night, 7/27.

The ROSEATE SPOONBILL continues to be seen at Brigantine NWR as of 7/24. The bird is still being seen in the area of the gull pond tower in the morning and evening.

LEAST BITTERNS continue to make routine flights around gull pond for observers waiting to see the spoonbill.

Also at Brigantine NWR were two CATTLE EGRETS, multitudes of shorebirds and a report of a VIOLET-GREEN SWALLOW on 7/24. There have been no further reports of this swallow species.

NORTHERN GANNETS have been reported flying past and feeding off the coast of Cape May in the last week.

Two to four GULL-BILLED TERNS continue to be seen easily from the Cape May Point State Park. Look for the small flocks of terns roosting on the “sand bar” in Bunker pond. Or, look for these birds flying over Lighthouse pond.

Also seen at the State Park today 7/28, a basic plumage BLACK TERN which has been frequently seen around Bunker Pond.

A first summer LESSER BLACK-BACKED GULL was seen roosting with GREAT BLACK-BACKED GULLS on the beach at the Cape May Migratory Bird Refuge on 7/25.

A MARBLED GODWIT was seen at Stone Harbor Point, yesterday, 7/27.

Lastly, LONG-BILLED DOWITCHERS seem to be showing up in various places this week. One was at Stone Harbor Point on 7/27 as well as two to three at Brigantine NWR on 7/26.

2nd ANNOUNCEMENT:

The Northwood Center will be closed on Monday 7/30 and Tuesday 7/31 for inventory. We are sorry for any inconvenience this may cause.


CMBO Bookstore hours are as follows; Northwood Center on East Lake Drive in Cape May Point; summer hours, Wednesday- Monday 9:30-4:30. The Northwood Center will be closed on Tuesdays. The Center for Research and Education on Rt. 47 in Goshen is open Tuesday- Sunday 9:30- 4:30. At least one CMBO center will be open everyday to serve our members needs.


The Cape May Birding Hotline is a service of the New Jersey Audubon Society’s Cape May Bird Observatory and details sightings from Cape May, Cumberland, and Atlantic Counties. Updates are made weekly. Please report sightings of rare or unusual birds to CMBO at 609-884-2736. Sponsorship for this hotline comes from the support of CMBO members and business members, and should you not be a member, we cordially invite you to join. Individual membership is $35 per year; $45 for families. You can call either center to become a member or visit. Become a member in person and you’ll receive your choice of a FREE gift (in addition to member discount in the stores).

Good Luck and Good Birding!

CMBO's School of Birding workshop, "Adult Shorebirds Peaking at Bombay Hook," on Wednesday and Thursday enjoyed just that - abundant shorebirds, in breeding dress for the most part, though returning adult shorebirds at this time of year are in worn plumage and many have begun to molt in the gray feathers of non-breeding plumage.

Perhaps the best spot was Taylor's Gut at Woodland Beach Wildlife Area, along route 9 north of Bombay Hook. Go there at high tide, it's too dry at other times, and in the morning for the best light conditions. This is a great spot to study peep, with scores of Semi-palmated and Least Sandpipers, and many Western Sandpipers to compare. A Black Tern in breeding plumage flew over while we were there Thursday, and a little later a very dark juvenile Peregrine Falcon blew all the birds out - if you arrived after the Peregrine, you would think there wasn't a shorebird in Delaware! A river otter fished in the "gut" behind us as well, occasionally surfacing at close range.

Raymond Pool at Bombay Hook held it's usual array of Black-necked Stilts and Avocets, hundreds of dowitchers, dozens of Stilt Sandpipers, two different-plumaged Wilson's Phalaropes, and an early juvenile Bonaparte's Gull. We worked hard to pick out Long-billed Dowitchers and found (and heard) several.

Thanks to the gracious folks at Bombay Hook NWR, who allowed us to use the Visitor Center auditorium, we held indoor sessions with slides each afternoon, after which participants could again hit the field to practice what we learned.

At Port Mahon, shorebirds still fed on horseshoe crab eggs on the bayshore (crabs continue spawning well into summer), and we found two breeding plumage red knots likely on their return trip. We also found a Semipalmated Sandpiper banded with a white flag, which means it came somewhere from Canada, and a Ruddy Turnstone with green bands on both legs and a green flag (greens means U.S., likely this bird was banded by NJDEP along the NJ side of the bay).

On the ferry trip back across to Cape May Thursday evening, I counted over 150 Snowy Egrets roosting on the Lewes breakwater at dusk, and a sadly dead huge (5' shell length) Leatherback sea turtle floated past the boat, easily identified by its lack of scutes. Unlike other turtles, the leatherback has no visible hard shell; instead, it has a carapace made up of hundreds of irregular bony plates covered with a leathery skin appearing segmented in longitudinal rows.

The full workshop lists are below:

Location: Bombay Hook NWR
Observation date: 7/26/07
Notes: CMBO's 2 day shorebird workshop. This is a composite list from 2 days of observation, total 12 hours in the field.
Number of species: 67
Canada Goose 30
Mallard 6
Green-winged Teal 15
Northern Bobwhite 2
Great Blue Heron 10
Great Egret 30
Snowy Egret 60
Tricolored Heron 1
Glossy Ibis 300
Turkey Vulture 10
Osprey 5
Bald Eagle 3
Red-tailed Hawk 1
American Kestrel 2
Clapper Rail 2
Semipalmated Plover 5
Killdeer 5
Black-necked Stilt 40
American Avocet 120
Greater Yellowlegs 20
Lesser Yellowlegs 60
Semipalmated Sandpiper 50
Western Sandpiper 10
Least Sandpiper 20
Stilt Sandpiper 30
Short-billed Dowitcher 300
Long-billed Dowitcher 5
Wilson's Phalarope 2 1 male/winter; 1 male or worn/molting female
Laughing Gull 10
Bonaparte's Gull 1 A surprise, very brown-backed juvenile
Great Black-backed Gull 10
Caspian Tern 2
Forster's Tern 20
Black Skimmer 2
Rock Pigeon 5
Mourning Dove 20
Ruby-throated Hummingbird 5
Northern Flicker 1
Eastern Wood-Pewee 3
Willow Flycatcher 1
Eastern Kingbird 10
Purple Martin 30
Tree Swallow 30
Northern Rough-winged Swallow 10
Bank Swallow 30
Barn Swallow 30
Carolina Chickadee 1
Carolina Wren 2
House Wren 1
Marsh Wren 5
American Robin 5
Gray Catbird 5
Northern Mockingbird 2
Cedar Waxwing 10
Field Sparrow 1
Seaside Sparrow 3
Song Sparrow 5
Northern Cardinal 5
Blue Grosbeak 4
Indigo Bunting 4
Bobolink 5
Red-winged Blackbird 20
Common Grackle 5
Brown-headed Cowbird 40
Orchard Oriole 4 at least 1 adult feeding 3 flying young
House Finch 5
House Sparrow 2

Location: Woodland Beach Wildlife Area
Observation date: 7/26/07
Notes: CMBO's shorebird workshop. Also saw River Otter!
Number of species: 51
Canada Goose 10
Northern Bobwhite 1
Great Blue Heron 2
Great Egret 5
Snowy Egret 10
Little Blue Heron 1
Green Heron 1
Glossy Ibis 10
Black Vulture 6
Turkey Vulture 15
Osprey 2
Bald Eagle 1
Peregrine Falcon 1 Very dark juvenile came in and blew everything out.
Semipalmated Plover 5
Killdeer 5
Black-necked Stilt 6
Greater Yellowlegs 5
Lesser Yellowlegs 15
Spotted Sandpiper 2
Semipalmated Sandpiper 300
Western Sandpiper 20
Least Sandpiper 100
Pectoral Sandpiper 1
Stilt Sandpiper 20
Short-billed Dowitcher 40
Long-billed Dowitcher 1
Laughing Gull 10
Ring-billed Gull 5
Forster's Tern 10
Black Tern 1
Mourning Dove 5
American Crow 5
Fish Crow 1
Purple Martin 5
Tree Swallow 10
Bank Swallow 10
Barn Swallow 10
Carolina Wren 1
Marsh Wren 4
Eastern Bluebird 1
American Robin 5
Gray Catbird 1
Common Yellowthroat 1
Seaside Sparrow 1
Song Sparrow 1
Northern Cardinal 5
Indigo Bunting 1
Bobolink 10
Red-winged Blackbird 5
Common Grackle 2
House Finch 1
This report was generated automatically by eBird v2(http://ebird.org)

Location: Port Mahon
Observation date: 7/26/07
Notes: CMBO's shorebird workshop. Apparently the birds were feeding on horseshoe crab eggs, many dead crabs in evidence.
Number of species: 8
Osprey 1
Lesser Yellowlegs 10
Ruddy Turnstone 5 1 with two green bands and one green flag on l leg.
Red Knot 2
Sanderling 10
Semipalmated Sandpiper 100 1 with a white flag on r leg - from Canada.
Laughing Gull 50
Forster's Tern 5
This report was generated automatically by eBird v2(http://ebird.org)

This morning we decided to try and see what shorebirds might be up on Nummy Island at high tide. Unfortunately, I was wrong and there we not too many shorebirds using the island this morning. It did look like there was a good number of birds on Stone Harbor Point but given the grey overcast conditions we didn't scope over that way too much.

Since not much was going on at Nummy, we headed down to the Cape May Point State Park. Finally got good looks at the Black tern that has been hanging out around Bunker pond. Also a total of four Gull-billed terns in the park, 2 on Bunker pond and two flying over Lighthouse pond. The list of species observed is below.

Location: Nummy Island
Observation date: 7/26/07
Number of species: 27
Canada Goose 15
Great Blue Heron 5
Great Egret 67
Snowy Egret 54
Little Blue Heron 3
Tricolored Heron 4
Black-crowned Night-Heron 6
Glossy Ibis 2
Osprey 2
Semipalmated Plover 6
Killdeer 3
American Oystercatcher 2
Greater Yellowlegs 2
Lesser Yellowlegs 4
Least Sandpiper 5
Short-billed Dowitcher 8
Laughing Gull 350
Herring Gull 3
Great Black-backed Gull 6
Common Tern 75
Forster's Tern 15
Black Skimmer 49
Seaside Sparrow 2
Song Sparrow 2
Red-winged Blackbird 12
Common Grackle 4
Boat-tailed Grackle 18
This report was generated automatically by eBird v2(http://ebird.org)

Location: Cape May Point SP
Observation date: 7/26/07
Number of species: 44
Canada Goose 34
Mute Swan 54
Mallard 16
Great Blue Heron 13
Great Egret 22
Snowy Egret 24
Turkey Vulture 2
Osprey 3
Semipalmated Plover 6
Piping Plover 3
Killdeer 14
Greater Yellowlegs 8
Lesser Yellowlegs 23
Semipalmated Sandpiper 4
Least Sandpiper 46
Short-billed Dowitcher 25
Laughing Gull 150
Great Black-backed Gull 5
Gull-billed Tern 4
Common Tern 15
Forster's Tern 34
Least Tern 75
Black Tern 1
Rock Pigeon 6
Mourning Dove 12
Eastern Kingbird 1
White-eyed Vireo 6
Purple Martin 30
Tree Swallow 10
Northern Rough-winged Swallow 3
Barn Swallow 15
Carolina Chickadee 8
Carolina Wren 12
American Robin 16
Gray Catbird 2
Northern Mockingbird 2
Cedar Waxwing 6
Yellow Warbler 3
Common Yellowthroat 14
Northern Cardinal 6
Red-winged Blackbird 6
Common Grackle 4
Orchard Oriole 2
House Sparrow 5
This report was generated automatically by eBird v2(http://ebird.org)

This was emailed to me from one of CMBO's Associate Naturalists. Evidently, this bird is still a possibility for those of you who have yet to try and see it. Good luck.


"The Roseate Spoonbill flew into the Gull/Heron Pond about 6:50 pm this evening providing good views in the pond feeding and roosting in the trees. About 7:15 pm it flew out toward the N. Dike."

My arm was twisted this morning to visit the CMMBR again as we decided to look for any new shorebirds that might have flown in the last few days. A list of species observed is below.

Location: South Cape May Meadows
Observation date: 7/24/07
Number of species: 50
Canada Goose 30
Mallard 2
Northern Bobwhite 1
Northern Gannet 1
Snowy Egret 1
Black-crowned Night-Heron 1
Glossy Ibis 3
Turkey Vulture 2
Osprey 3
Semipalmated Plover 13
Piping Plover 2
Killdeer 6
American Oystercatcher 5
Greater Yellowlegs 2
Lesser Yellowlegs 3
Spotted Sandpiper 1
Semipalmated Sandpiper 4
Least Sandpiper 36
Pectoral Sandpiper 2
Laughing Gull 250
Herring Gull 20
Great Black-backed Gull 25
Forster's Tern 40
Least Tern 75
Black Skimmer 2
Rock Pigeon 5
Mourning Dove 3
Chimney Swift 4
Ruby-throated Hummingbird 1
Downy Woodpecker 2
White-eyed Vireo 1
American Crow 2
Purple Martin 12
Tree Swallow 135
Northern Rough-winged Swallow 3
Barn Swallow 15
Gray Catbird 1
Northern Mockingbird 4
Yellow Warbler 5
Common Yellowthroat 7
Song Sparrow 6
Northern Cardinal 3
Blue Grosbeak 1
Indigo Bunting 2
Red-winged Blackbird 8
Common Grackle 4
Brown-headed Cowbird 21
House Finch 9
American Goldfinch 2
House Sparrow 11
This report was generated automatically by eBird v2(http://ebird.org)

Wilson's Storm-petrels went undetected from the 7:30 a.m.Cape May-Lewes Ferry trip this morning, but a different Wilson's was waiting at Bombay Hook NWR in Delaware - that being a male/winter Wilson's Phalarope. Floating next to it, in fact feeding very much like it come to think of it, was a juvenile gull that stopped me for a moment. After rewinding some mental tape as to the difference between juv. Sabine's and Bonaparte's Gulls, I and a birder from Salisbury MD concluded it was indeed the more common, but still unusually early, Bonaparte's.

Things are looking good for CMBO's Shorebird Workshop Wednesday and Thursday. Besides the phalarope, dowitchers are plentiful down here, including at least 5 adult Long-billed amidst the many Short-billed. This means it's time to look for Long-billeds in Cape May, or up at Brig. The bulk of Long-billed Dowitcher migration in the mid-Atlantic comes much later, but the first adults begin trickling through in late July.

Other highlights today included the many Black-necked Stilts, American Avocets, a dozen or more Stilt Sandpipers, quite a number of Western Sandpipers amidst the Semis and Leasts, both Yellowlegs, Black Tern, Bald Eagles, Blue Grosbeaks, Northern Bobwhites. . . not all shorebirds, it's true, but good stuff nonetheless.

Here's a look at a one of the Least Tern fledglings mentioned in my previous post. Photo (c) Karl Lukens.

Since it was such a beautiful day yesterday, after work we decided to take a stroll around the State Park to see if we could find the Black tern that has been hanging around the last couple of days.

Well, no luck with the tern but a list of what we did observe is below. With the rain this morning I'm glad I took that walk yesterday. Migration just isn't strong enough yet for me to want to get out of bed and bird in the rain.

Location: Cape May County, NJ, US
Observation date: 7/23/07
Notes: Cape May Point State Park
Number of species: 48
Canada Goose 34
Mute Swan 50
Mallard 25
Great Blue Heron 18
Great Egret 8
Snowy Egret 1
Glossy Ibis 2
Osprey 4
Cooper's Hawk 3 - young birds, fledged from a nest at the St. Park. They were quite obvious as they were chasing each other around and calling quite a bit.

Semipalmated Plover 4
Piping Plover 1
Killdeer 12
Greater Yellowlegs 6
Lesser Yellowlegs 10
Solitary Sandpiper 2
Least Sandpiper 48
Pectoral Sandpiper 1
Laughing Gull 50
Herring Gull 35
Great Black-backed Gull 5
Common Tern X
Forster's Tern 26
Least Tern 50
Rock Pigeon 18
Mourning Dove 12
Chimney Swift 6
Northern Flicker 1
Eastern Kingbird 6
Fish Crow 3
Purple Martin 25
Tree Swallow 13
Northern Rough-winged Swallow 10
Barn Swallow 12
Carolina Chickadee 4
Tufted Titmouse 2
Carolina Wren 3
House Wren 1
American Robin 4
Northern Mockingbird 2
Cedar Waxwing 3
Northern Cardinal 4
Indigo Bunting 2
Bobolink 2
Red-winged Blackbird 16
Common Grackle 6
Orchard Oriole 4
House Finch 2
American Goldfinch 2
This report was generated automatically by eBird v2(http://ebird.org/)

This morning's CMBO walk at the South Cape May Meadows (TNC's Cape May Migratory Bird Refuge) ducked between showers and featured breezy conditions, great light for birding including incredibly clear viewing offshore (we could see the Ocean City, Maryland water tower), and evidence of the way birds shift across the continent like desert sands.

In the shifting department, the first accumulation of tree swallows made the dunes seem festive - we estimated over 300 total swallows, including 250 Tree Swallows. Many of these rested for extended periods on the dunes, in between foraging flights. A Belted Kingfisher appeared, the first I've seen at the meadows since the site re-opened. The ratio of Least Sandpipers to Semi-palmated Sandpipers has begun to tilt towards the Semis, though the Leasts still are substantially more common and may continue to be at the meadows if conditions stay the same. Plain, unvegetated mud and shallow water are in short supply, and that's the habitat the Semis prefer. The Leasts are quite happy with the small areas of moist soil with vegetation growing on it.

6 Juvenile Gannets was a highish count for July, and the rips were alive with birds but too far out to do much with. Sanderlings numbered over 100 on the beach.

Many fledgling Least Terns followed their parents around over the meadows, giving their plaintive two-note whistles, and some even ventured offshore. We watched one drop to the ocean and grab. . . a piece of seaweed. Good attempt, anyhow. I've watched juvenile herons "catch" and drop sticks repeatedly, all part of the learning process.

The wind made hearing flyovers a bit of a challenge, but a few Yellow Warblers, Bobolinks, and Indigo Buntings were passing. One of the participants asked, "You mean that 'bzzzt'?" when I called out an Indigo; I couldn't have described it better.

We had some interesting discussion on counting birds, which is difficult. With the peep, for example, I tried to come up with a total number of birds and then figure the ratio of Leasts to Semis, though looking back (and if I hadn't been leading a walk and had the time) I might have been better off doing two actual counts, one for each species, as I scoped the mud). The e-bird site has some interesting discussion on counting. One point made is that if you don't count and just list species, the data you enter will indicate that, say, Pectoral Sandpipers are as common as Least Sandpipers, which they clearly are not.

It's important to remember that a field count does not represent how many birds there were; it is only how many birds were seen (or heard), and even at that will be imprecise for most species. But over time, counting can reveal patterns in populations.

Today's list is below.

Location: South Cape May Meadows
Observation date: 7/23/07
Notes: CMBO Monday walk, with K & J Lukens, T Parsons, S Weiss + participants
Number of species: 51
Canada Goose 40
Mute Swan 2
Northern Bobwhite 1
Northern Gannet 6 All juvs, fishing off 2nd ave.
Great Blue Heron 3
Great Egret 1 notably absent in the meadows, as were snowies - did they eat all the fish?
Turkey Vulture 2
Osprey 5
Semipalmated Plover 10
Piping Plover 6
Killdeer 5
American Oystercatcher 3
Greater Yellowlegs 1
Lesser Yellowlegs 5
Solitary Sandpiper 1
Spotted Sandpiper 5
Sanderling 100 highest count so far
Semipalmated Sandpiper 40 increased since last walk
Least Sandpiper 60
Pectoral Sandpiper 2
Short-billed Dowitcher 5
Laughing Gull 500
Ring-billed Gull 20
Herring Gull 10
Great Black-backed Gull 40
Common Tern 10
Forster's Tern 10
Least Tern 100 Many of the young are now flying well and following the adults around in the Meadows and offshore, giving a whiny two-noted whistle similar to but not as harsh as that of the adults. We watched one juv. drop to the surface of the ocean and pick up a bit of seaweed, still has some learning to do.
Black Skimmer 5
Mourning Dove 5
Chimney Swift 1
Ruby-throated Hummingbird 1
Belted Kingfisher 1 first in a long time at the Meadows
American Crow 5
Purple Martin 20
Tree Swallow 250 Shades of staging to come, this is the first aggregation of tree swallows at the Meadows we've heard about.
Northern Rough-winged Swallow 20
Barn Swallow 50
Gray Catbird 1
Northern Mockingbird 4 3 birds including at least one juv on dunes at east crossover
Yellow Warbler 5 3 overhead, 2 flew up out of the bayberry, and back down again
Common Yellowthroat 4
Song Sparrow 1
Northern Cardinal 5
Indigo Bunting 5 1 singing at lot, 4 overhead
Bobolink 5
Red-winged Blackbird 15
Common Grackle 1
Brown-headed Cowbird 5
House Finch 15
House Sparrow 5
This report was generated automatically by eBird v2(http://ebird.org)

This morning I decided to see what passerines the northerly winds over night might have blown down to the Cape. One thing I found out; the deerflies are still thick in areas of Higbee, especially around the pond.

The bird of the morning has to be the Great horned owl that flushed from the east side of the second field. It was a tail end view the whole way but the bird flew the length of the field affording me the ability to study a seldom seen view of this species.

Other nature notes:

Butterflies, in no particular order;
- Common wood-nymph, Monarch, Variegated fritillary, Summer azure, Spicebush swallowtail, Tiger swallowtail, Cabbage white, Red-spotted purple, Sachem and at least one other Skipper sp., Horace's duskywing, Eastern comma, Red admiral, Common buckeye.

Dragonflies, in no particular order. In fact I know even fewer dragonflies so the list is short.
- Green darner, Swamp darner, Common whitetail, Twelve-spotted skimmer, Black saddlebags, Halloween pennant.


Location: Cape May County, NJ, US
Observation date: 7/22/07
Notes: Higbee Beach WMA
Number of species: 37
Snowy Egret 1
Green Heron 1
Osprey 1
Red-tailed Hawk 1
Laughing Gull 50
Mourning Dove 14
Great Horned Owl 1
Downy Woodpecker 1
Great Crested Flycatcher 1
Eastern Kingbird 2
White-eyed Vireo 7
American Crow 1
Purple Martin 6
Tree Swallow 3
Barn Swallow 4
Carolina Chickadee 17
Tufted Titmouse 3
Carolina Wren 22
Blue-gray Gnatcatcher 8
American Robin 12
Northern Mockingbird 2
European Starling 5
Cedar Waxwing 4
Yellow Warbler 1
Prairie Warbler 1
Common Yellowthroat 2
Yellow-breasted Chat 1
Field Sparrow 12
Northern Cardinal 6
Blue Grosbeak 3
Indigo Bunting 7
Red-winged Blackbird 28
Common Grackle 4
Brown-headed Cowbird 45
Orchard Oriole 1- carrying food
House Finch 4
American Goldfinch 2
This report was generated automatically by eBird v2(http://ebird.org)