For our final morning at PRO COSARA we returned to the short stretch of road through the forest that we had visited the previous morning, to do a short walk before we departed. This turned into a very productive decision, with a few more species seen and activity quite good after the previous days storm.
We started with brief but acceptable views of an Atlantic Black-throated Trogon, which flew across the road before being coaxed back. The highlight species of the morning was a female Purple-crowned Plovercrest, but it was brief and always on the move, hardly the encounter we were looking for. Finally we added Buff-browed Foliage-Gleaner to our trip lists, although it took some effort to find the bird as it sat still.
After this we departed, at around 09:30. We were cautious about the state of the road due to the previous days rainfall, but we managed to drive the 10 kilometres of dirt road back to tarmac without too much issue. However, the 10 kilometres to our midday destination, the grasslands of Moises Bertoni was a different story. This road was in a shocking state and it was quite scary at times that we might get stuck, compounded on the return journey by rainfall. But we managed it without too many issues.
The birding at Moises Bertoni was not bad, but in the end we missed our main target the Cock-tailed Tyrant, although we were able to find the other main target with Ochre-breasted Pipit. Sadly our views were limited to a single flyover and a distant displaying individual, despite hearing song frequently. The best of the rest was a nice but distant Sharp-tailed Grass-Tyrant.
And with that we completed the rest of the day driving, finishing in the small town of Arroyos y Esteros close to Asuncion, from where we would be birding in the morning.
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