highly significantP < 0.0001
The mixed effects model confirmed that location was a highly significant predictor of nesting (z = -7.942, P < 0.0001), whereas probe type was not (z = 1.205, P > 0.05) for the three probe types deployed at all locations (A330, 737–800, 747–400): however, when all probes are considered across all locations, 86% of blockages occurred in probes with a diameter range of 5–8 mm.