Okay, here are some more details about this little fellas:

Size: They are 1.2 meters (4 feet) tall when standing upright and 1.4 meters (4.6 feet) from the tip of the tail to the beak.

Weight: They weigh approximately 45 kilograms (100 pounds) each.

Battery life: Their batteries last approximately 8 hours of continuous operation before needing to be recharged.

Speed: With no obstacles on flat ground, they are able to run at 50 km/h (30 mph), which is usually not the case. In a more likely terrain, like dense forests, they run at a slower speed of around 30 km/h (18mph).

Carrying capacity : Each hive bird is rated at a carrying capacity of up to 15 kilograms (33 pounds). but  they're capable of carrying an adult for short distances.

The hive birds use a system of pneumatic muscles to move, which lets them be light and agile while keeping their movements precise and efficient. These muscles are controlled by an array of valves and sustained by a small electric rotary air compressor located in their chest, which stores the compressed air in small, high pressure tanks located in their midsection, all powered by a battery located in their tail. 
Hive birds also have a unique skeletal structure made out of carbon steel, which aims to combine the agility of a raptor with the dexterity of a human. Which allows them to navigate difficult environments with ease and perform intricate tasks with their hands. 

The Hive birds are meant to work in a hive like manner, where every one of them is connected to each other in a network, organizing and coordinating their actions collectively in a hive mind fashion. This allows them to collect data and notify agencies about the status of the areas that they monitor, with changes in instructions sent to them applied immediately by every single hive bird.

They also operate with a base like structure where they go to charge their batteries and undertake maintenance if needed. These base structures get their power from solar panels and are equipped with enough spare parts and equipment to let the hive birds perform maintenance on each other, making each colony independent and only needing to be resupplied every six months on average.

Colonies vary in size and complexity depending on the area that they cover, with the smallest ones consisting of tree hive birds with a range of only a few kilometers, while the largest colonies can span several hundred kilometers and house more than one hundred hive birds with multiple base structures.

The hive birds are designed to keep the environment in check, keeping track of the ecosystem around them and collecting data on its changes. Some of the measures that they may take are pollination of plants, monitoring air quality, tracking wildlife populations, and detecting natural disasters such as wildfires or earthquakes.

While their primary function is to keep the ecosystem in check, the hive birds are also capable of providing safety to people inside the parks. Their highly sensitive microphones let them hear and react to distress calls from miles away by either notifying emergency services, carrying or guiding people back to safety, or scaring away any wildlife that might oppose a treat for visitors.

Oh, and the idea of pneumatic muscles came from this video: facebook.com/watch/?v=323350652606837