MacGillivray's Warbler still at Parque Metropolitano

The MacGillivray's Warbler discovered by Osvaldo Quintero last weekend and re-photographed on Friday is still in the Metropolitan Park pond area. Jan Axel Cubilla found it again on Sunday afternoon:
I took advantage of a tiny gap in my agenda and went to the park around 1:00 pm. In spite of the hour and the heat of our dry season, the place was alive with tons of birds attending a flowering Erythrina tree. [...]
Then, I saw a bird skulking in the understore exactly where Osvaldo described. Soon I noticed it was a female Geothlypis (formerly Oporornis) warbler, but most importantly, in the dark of the forest, the broken arcs above and below the eyes were quite conspicuous.
The call was different to the sweet chip note I'm used to for Mourning Warbler: it was harsher and rougher, but still a chip note. The yellowish throat made me doubt... but then I saw that this is quite variable (and some photos in the web show this feature in immature males MacGillivray's Warblers). The broken eye-ring was definitively more prominent than those of the female and immature Mourning Warblers, and the gray surrounding the throat made a complete breast band above the yellow belly, all consistent with MacGillivray's Warbler... my life MacGillivray's Warbler!