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Black Swifts Nesting at McArthur-Burney Falls Memorial State Park

10,000 Birds

Plus the fact that they only lay one egg per season which is incubated for about four weeks and the chicks don’t fledge for another fifty days gives you some notion as to why these birds are a Species of Special Concern. Pairs will also reuse the same nest in consecutive years, adding only a small amount of material to the nest.

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Collaborative List – August 2017

10,000 Birds

Eastern Egg Rock. Eastern Egg Rock. Eastern Egg Rock. Nashville Warbler – Oreothlypis ruficapilla. Jamaica Bay, Big Egg Marsh. Merritt Island NWR–Vistor Information Center. Gulf of Nicoya (Puntarenas/Paquera ferry). 28 Jun 2017. Common Murre – Uria aalge. 28 May 2017. 27 May 2017.

2017 100
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Combined Beats’ List, May 2016

10,000 Birds

There may be a bit of backroom competition by the beats as only the first of the species will be noted on the list, but with a little delving, there is more information here than we first realised. Big Egg Marsh. Nashville Warbler – Oreothlypis ruficapilla. Big Egg Marsh. Cartagos 2. 14 May 2016. Los Cartagos.

2016 100
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Combined Beats’ List – September

10,000 Birds

There may be a bit of backroom competition by the beats as only the first of the species will be noted on the list, but with a little delving, there is more information here than we first realised. Nashville Warbler – Oreothlypis ruficapilla. Big Egg Marsh. Unexpectedly, every entry can be highlighted as a link.

2016 154
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Combined Beats List – June 2016

10,000 Birds

There may be a bit of backroom competition by the beats as only the first of the species will be noted on the list, but with a little delving, there is more information here than we first realised. Big Egg Marsh. Nashville Warbler – Oreothlypis ruficapilla. Unexpectedly, every entry can be highlighted as a link.

2016 100
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Combined Beats’ List – July 2016

10,000 Birds

There may be a bit of backroom competition by the beats as only the first of the species will be noted on the list, but with a little delving, there is more information here than we first realised. Nashville Warbler – Oreothlypis ruficapilla. Big Egg Marsh. Unexpectedly, every entry can be highlighted as a link.

2016 100
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Combined Beats’ List – August

10,000 Birds

There may be a bit of backroom competition by the beats as only the first of the species will be noted on the list, but with a little delving, there is more information here than we first realised. Nashville Warbler – Oreothlypis ruficapilla. Big Egg Marsh. Unexpectedly, every entry can be highlighted as a link.

2016 101