Natural cross chlamydial infection between livestock and free-living bird species.

PLoS One · 2010 · PMC2957445 · PMID 20976071

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a positive trendno p-value reported

Extremadura possesses up to 25% of the lesser kestrel Spanish population and its numbers have shown a positive trend over the last several years [37] .

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.