Range expansion and noteworthy records of Costa Rican birds (Aves)
We present new distribution information for 19 species of Costa Rican birds.Thirteen species show changes in altitudinal distribution, 9 are recorded at higher elevations such as Egretta rufescens (Gmelin, 1789), Heliomaster constantii (Delattre, 1843), Myiozetetes cayanensis (Linnaeus, 1766), and Lonchura Medium Format Lens malac