Why Eagles are Overdubbed In Movies

Quick Overview

Eagles are overdubbed in movies because their natural calls are surprisingly weak and unmajestic, sounding like the squawk of a Red-tailed Hawk, while the iconic screech often associated with them is actually the sound effect work of a Red-tailed Hawk, leading to the use of this more impressive sound in media.

Key Points: The iconic, fierce screech often heard accompanying Bald Eagles in media is not their actual sound; it is the cry of a Red-tailed Hawk. Bald Eagles possess a vocalization that is surprisingly less majestic and more similar to a weak cackle or whinny. The video demonstrates this auditory deception using a stick-figure animation of a movie production where a Red-tailed Hawk is used for the eagle's voiceover (0:39). The segment also briefly covers other surprising animal facts, such as leaf-cutter ants farming fungus, yeti crabs farming bacteria, and the function of a tuned mass damper in the Taipei 101 skyscraper (3:45). Other topics covered include the four stages of wound healing (3:35), the function of the Svalbard Global Seed Vault (5:19), and the lack of a single time zone at the geographic poles (7:08).

Context: This video segment, presented as Part 2 of a 'Science Minute' from the show 'Mission Unstoppable,' uses animated explanations to debunk common misconceptions or reveal surprising facts across various scientific and general knowledge topics, beginning with the sound of the Bald Eagle.

Detailed Analysis

The video segment addresses the common misconception that the Bald Eagle has a powerful, piercing screech. Host Miranda Cosgrove explains that the sound often used in media is actually the vocalization of a Red-tailed Hawk (0:36). The Bald Eagle's true call is much less impressive, described as more of a whinny or cackle (0:52). The segment then transitions through several unrelated scientific facts: it illustrates that leaf-cutter ants farm fungus underground (1:34), that yeti crabs farm bacteria using their hairy arms (1:58), and that the Taipei 101 skyscraper uses a 660-ton Tuned Mass Damper to counteract wind forces (3:45). Further facts include the four stages of wound healing: hemostasis, inflammatory, proliferative, and maturation (6:35), and the purpose of the Svalbard Global Seed Vault, which stores over 1,000,000 seeds for global food security (5:39). Finally, the video tackles time zones, explaining that because the Earth's time zones converge at the poles, there is no naturally agreed-upon time zone for the North Pole, while the South Pole research station uses GMT+13 for convenience based on supply routes (7:54).