Back to Peru!
That’s right, I am back in Peru right now studying hummingbirds. I know, it is a bit crazy for me to be gathering data the semester I plan to graduate, but I got a grant to travel to Peru, and I am not about to say no to that!
Anyways, this trip to Peru is much more structured than last time. Last time, I was scouting the country and searching for field sites. Now that I have field sites, I am staying those places for longer periods of time. Right now, I am in Northern Peru three weeks. I am currently staying at the Center for the Spectacled Bear Conservation Society (SBC), in a small town called Batangrande. It is a family run field station that is near the Andes Mountains and in the tropical dry forests unique to this region (called Tumbes). It is also a great location to study two species of hummingbirds: short-tailed woodstar (Myrmia micrura) and purple-collared woodstar (Myrtis fanny).
So far, things are going well. I have found territories of multiple males for both species, including over 10 territories for the short-tailed woodstar. Now I am working to trap a female of each species and use her to film the courtship dances of the males.
The short-tailed woodstar, which is a species somewhat endemic to the Tumbes region, is a tiny hummingbird with a ridiculously small tail (that is actually what it says in the bird guide book). The males have an iridescent purple gorget (throat patch) and sing a song similar to the Costa’s hummingbirds in the US. They live in the tropical dry forests here, which are a very interesting habitat. It is very hot and sunny here, but the habitat is different than many I have visited in Peru. Here are some pictures of the dry forests:
The purple-collared woodstar, is much more widespread in Peru, but tends to live at higher elevations. For them, we drive up into the Andes until about 6,500 ft (2,000 meters), and work in the montane scrub and agriculture areas there. I like these sites because they are much cooler than the dry forest below, and the mountains are very beautiful. This species has been a bit weird for me, because we have found many, many females, but only a few males. But the males we found will work just fine, and I have already seen them display naturally to females, which is a great sign! The purple-collared woodstar is especially interesting to me because of the color of its gorget. Most of the species in the group of hummingbirds I study (the bee hummingbirds) have purple, pink, or red gorgets, but the purple-collared woodstar has a greenish-blue iridescent gorget. I do not have any great pictures of the males yet, but here is the habitat in which we have found them, and a photo of the male from the side:
That is all I have for now, but I should have videos of courtship displays and photos of males that I have captured soon!