Yana Ellis (asker) Jan 31, 2020:

Hi All, Thank you very much for all your contributions - you have been most helpful.
Phil, thank you for pointing out the plural;
'Brut' means brood, offspring, hatchlings, fledgling - https://www.duden.de/rechtschreibung/Brut; https://www.wordreference.com/deen/Brut

So, I think in context Ramey's suggestions work best.
Thank you again to all of you for taking the time.
Yana

Ramey Rieger (X) Jan 31, 2020:

Good morning Phil! Let's get finnicky, shall we?
1. It has been confirmed that THE pair in 95% of territories displays territorial behavior, brings forth fledglings and/or attempts to nest.
2. In 95% of territories, A pair's territorial behavior, the emergence of fledglings or attmepted nesting has been confirmed.

philgoddard Jan 31, 2020:

Each territory has one pair. So it's the pair, das Paar.

Ramey Rieger (X) Jan 30, 2020:

Inconsistency? In 95% of territories a pair's (not THE pair's), since it is many territories.

Björn Vrooman Jan 30, 2020:

Very concise =) Would it be OK to use "confirmed" for "nachgewiesen"?

See the definition from the Rare Breeding Birds Panel (the RBBP link below): "Where tables show the number of occupied territories, these are the sum of probable and confirmed breeding pairs, as territorial birds are classed as being probably breeding, unless a nest has (at least) progressed to the stage where eggs have been laid, in which case the pair is classified as a confirmed breeding pair. It is important to note that confirmed breeding is not the same as successful breeding; nests that fail with eggs or with young still fall into the confirmed category."

[Emphasis in the original.]

Best

philgoddard Jan 30, 2020:

It is clear that in 95 percent of territories, the pair's presence has been revealed by territorial behaviour, or by actual or attempted breeding.

philgoddard Jan 30, 2020:

Yes So you could say "actual or attempted breeding" to avoid the repetition in the German.

Björn Vrooman Jan 30, 2020:

Hello Phil As for Brutversuch, see:
"Im weiteren Verlauf kam es sogar zur Eiablage mit Brutversuch durch ein Weibchen - leider ohne Erfolg."
https://www.naturfoto-fahl.de/die-vögel-des-oderbruchs/stelz...

Direct comparison:
"Belegt ist außerdem ein nicht erfolgreicher Brutversuch auf den Snaresinseln."
https://de.wikipedia.org/wiki/Chatham-Albatros

"One pair has attempted to breed on Western Chain, Snares Island."
http://nzbirdsonline.org.nz/species/chatham-island-mollymawk

Here's a list that includes the above phrase:
"1 pair attempted breeding 2004"
http://www.gedlingconservationtrust.org/netherfield-lagoons/...

Same here:
"The species specific merlin survey and the moorland breeding bird survey confirmed no breeding or attempted breeding within the proposed transmission line study corridor. "
https://www2.gov.scot/resource/doc/917/0092833.pdf

Cf "breeding evidence":
https://www.rbbp.org.uk/downloads/definitions-breeding.pdf

Best wishes

philgoddard Jan 30, 2020:

Yana You've got a couple of things wrong:
Reviere is plural, so it means "in 95% of territories"
Brut means mating or nesting, I'm not sure which.

Björn Vrooman Jan 30, 2020:

Here are some examples... ...of revieranzeigendes Verhalten (p. 4):
"...Gesang, Balz, aggressives Verhalten gegenüber Artgenossen, Attacken auf Greif- und Rabenvögel, Beobachtung von Jungvögeln, Transport von Nistmaterial oder Futter."
http://www.soehlde.de/media/custom/1736_1736_1.PDF?149396813...

The second part of the compound is anzeigend, i.e., indicative/indicating, as in:
"Potential nesting sites are observed over a suitable period of time for bird movements or calling male birds that would indicate the presence of a nest."
https://www.whitcher-wildlife.co.uk/services/surveys/birds/

I know it's Paar, not Nest; this was just an example. Based on the Seabird Census conducted in the UK and Ireland, this seems to refer to Apparently Occupied Territory, or AOT for short (p. 10):
http://archive.jncc.gov.uk/pdf/Count form and instructions.p...

Best wishes