As you're exploring in Palworld, you will notice that different regions contain different Pals. In the Snowy Mountains, the Mammorest Cryst and other ice types are pretty common, while at Mount Obsidian you'll find many fire types, such as the Kelsea Ignis.
This also goes for the desert areas and grasslands. One Pal that is a little elusive and frustrating to find is Ragnahawk. Finding it can be difficult, as can catching it. Though there is more than one way to add these Pals to your collection.
It may not come as a surprise, but Ragnahawks are pretty common at Mount Obsidian. This location is on the lower southwest of your map. Due to being a fire type, it makes sense they would be located in a volcanic biome. Most of them will be clustered toward the west side of this region, close to the Jetragon boss. However, some have been spotted around the Mount Obsidian Anubis Statue.
Each Pal has an element to them, and as such, each element has strengths and weaknesses. Since Ragnahawk is a fierce fire type, you'll want to bring water types to fight against it. Utilize your dodging skills as it blasts fire at you.
Your best bet is to attack, dodge, and repeat. Stay aware of your surroundings when battling it on Mount Obsidian as there are other dangers lurking around.
An alternative of finding Ragnahawk is taking a chance at some scorching eggs. This type of egg is very common in this biome, so you'll find it nearly everywhere you look. You have a chance at hatching a Ragnahawk from one of these eggs.
Ragnahawk has a couple of skills when it comes to work suitability, including kindling and transporting. While these aren't the most important tasks at your base, it does help when you have a large base to get the materials stored. You can also ride Ragnahawk by crafting the Ragnahawk Saddle, though you can't unlock it until level 37, and it has a few materials you'll need to craft it.