Hindsight · review build · data not yet validated
Many of these flying weapons are the size of small birds, or smaller.
Grader A: miss
Most US drones in 2009 were Raven scouts: hand-launched and unarmed, larger than a small bird. Armed flying devices the size of small birds did not exist in service. Nano scout drones reached only small numbers of troops after 2012 (grader background knowledge, not retrieved).
Test: Share of flying weapons of small-bird size or smaller: effectively zero in 2009; very few by 2014.
Grader B: miss
No bird-sized or smaller flying weapons were in wide service by 2009 or 2014. Micro air vehicles were fielded for reconnaissance only: the T-Hawk (from 2007) searched for roadside bombs, and the 16-gram Black Hornet Nano reached British troops in Afghanistan in 2012. Neither was a weapon. 'Many' bird-sized flying weapons did not exist.
Test: Test: a large share of flying weapons are bird-sized or smaller. 2009-2014: 0% of armed systems; small UAVs were unarmed reconnaissance tools.