Invasive Intruders and the Young Guardians of the Forest - a 3rd Grade NGSS Adventure In 'Invasive Intruders and the Young Guardians of the Forest,' a vibrant forest ecosystem is threatened by the spread of invasive bush honeysuckle, disrupting the lives of its native inhabitants, including a family of robins. As the honeysuckle alters the forest, the robins face new challenges: lower nesting sites leading to increased predator risks and a scarcity of nutritious food crucial for migration. Just