We examined differences in estimates of occupancy of nightjars in the Atlantic Flyway, determined number of nightjar-specific survey routes required to estimate nightjar abundance, and developed a statistically defensible distribution of survey routes. We did not find support for a negative trend in nightjar occupancy given current surveys, and recommend 300 routes for nightjar monitoring at the Atlantic Flyway scale. We encourage final development and implementation of this survey and periodic review and revision of field methodology.

We developed predictive models of pup-rearing habitat (i.e., den and rendezvous sites) that could help guide future population monitoring efforts of Mexican wolves. Mexican wolves selected den sites at higher elevations in steeper and rougher terrain that was closer to permanent waterbodies but farther from rural roads, whereas selection of rendezvous sites was associated with higher elevations and proximity to waterbodies but varied with availability of green leaf biomass. Terrain features associated with physical protection and access to reliable water were most important in characterizing suitable pup-rearing habitat for Mexican wolves.

The American Woodcock Singing-Ground Survey (SGS) may not cover all available woodcock breeding range, particularly in more northern regions. Using SGS data collected in Canada between 2000 and 2019, we evaluated the relationship between 16 landscape covariates and male woodcock occurrence and abundance and we developed a predictive map to identify priority areas for SGS expansion in Canada. We found that male woodcock prefer moist areas with young, broadleaf forest intermixed with pasture and grassland clearings for display. We also identified sites north and west of the current SGS range for possible SGS expansion.

Recent advances in biotelemetry allow monitoring of large mammals with varying neck sizes across multiple ecological milestones (e.g., summer survival, dispersal, winter habitat use). Our objectives were to evaluate the retention rates of band designs, determine factors affecting retention (e.g., mass, sex), and assess global positioning system (GPS) collar function (e.g., fix success rate, mean linear error) on wild neonatal deer in grassland and forested habitat types. Collar retention was high (88 to 91%) at 3 months of age but declined (41 to 59%) by 1 year of age. Older fawns at capture were less likely to retain their collar, but sex and size did not affect retention. Fix success rate was high (~97%) and not impacted by habitat type. However, location error was greater (β = −7.7, 95% CI, −5.92–−9.39) in forested ($$\bar{{\rm{x}}}$$ = 12.7 m) versus grassland ($$\bar{{\rm{x}}}$$ = 5.1 m) habitat type.