53 April 7 Rio Agua Dulce Songs heard were various: 1 da-da tweet, da-da-tweet, da-da-tweet L I L I I heard several times. 2 re-tweet, re-tweet, retreat - fairly concurrently. 3 Trr-pi-coo 4 chip-a-wa, chip-a-wa, chip-a-wa -fast L 3 J L 3 J L 3 J 5 Peck-tweet, etc. Some kind then gave Pico-weet and then Peck-o-wa -> This given by two bird in union, with a third joining in just at the last. I believe that nigricaudatus and chiapensis are close in habitat requirements -although the former endoubtedly has a wider tolerance and is able to occupy brushy places such as near Rancho Oconoz and "above" Rancho Occilapa. However, when it hits Tonalei region only the rich vegetation is available & this is occupied by an abundant population of chiapensis - extremely abundant - probably filling all available areas suitable. A few birds push to 2.6 mi. SE where they occupy drier places along the road not frequented by chiapensis - but even so they are uncommon.