| Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities RO Martin, MR Perrin, RS Boyes, YD Abebe, ND Annorbah, A Asamoah, ... Ostrich 85 (3), 205-233, 2014 | 64 | 2014 |
| Using encounter rates as surrogates for density estimates makes monitoring of heavily-traded grey parrots achievable across Africa SJ Marsden, E Loqueh, JM Takuo, JA Hart, R Abani, DB Ahon, ... Oryx 50 (4), 617-625, 2016 | 26 | 2016 |
| Trapping method and quota observance are pivotal to population stability in a harvested parrot S Valle, NJ Collar, WE Harris, SJ Marsden Biological Conservation 217, 428-436, 2018 | 19 | 2018 |
| Population viability and conservation of grey parrots Psittacus erithacus on the island of Príncipe, Gulf of Guinea S Valle Manchester Metropolitan University, 2015 | 9 | 2015 |
| Population estimates of the breeding birds of the Tinhosas islands (Gulf of Guinea), the only major seabird colony of the eastern tropical Atlantic S Valle, N Barros, I Ramírez, RM Wanless Ostrich 87 (3), 209-215, 2016 | 8 | 2016 |
| Spatial and seasonal variation in abundance within an insular grey parrot population S Valle, NJ Collar, WE Harris, SJ Marsden African Journal of Ecology 55 (4), 433-442, 2017 | 7 | 2017 |
| Seasonal changes in abundances of waterbirds at Sabaki River Mouth (Malindi, Kenya), a key stopover site on the West Asian–East African Flyway S Valle, L Boitani, IMD Maclean Ostrich 83 (1), 19-26, 2012 | 7 | 2012 |
| International action plan for the conservation of critically endangered birds on São Tomé: 2014-2018 PK Ndang’ang’a, A Ward-Francis, L Costa, RF de Lima, J Palmeirim, ... BirdLife International, São Tomé, 2014 | 6 | 2014 |
| Status and trends of the seabirds breeding at Tinhosa Grande Island, São Tomé e Príncipe S Valle, N Barros, R Wanless Birdlife International, Cambridge, UK, 2014 | 6 | 2014 |
| What can the abundance of Grey Parrots on Príncipe Island tell us about large parrot conservation? S Valle, NJ Collar, M Melo, SJ Marsden Journal of Tropical Ecology 36 (6), 293-297, 2020 | 4 | 2020 |
| Low abundance of the Endangered timneh parrot Psittacus timneh in one of its presumed strongholds S Valle, NJ Collar, B Barca, P Dauda, SJ Marsden Oryx, 2019 | 3 | 2019 |
| A protocol to allow density estimation and monitoring of the heavily traded grey parrots across their huge African ranges SJ Marsden, E Loqueh, JM Takuo, JA Hart, R Abani, DB Ahon, C Showers, ... Strengthening Capacity for Monitoring and Regulation of International Trade …, 2013 | 3 | 2013 |
| First confirmed record of Squacco Heron for São Tomé and Príncipe S Valle ABC Bulletin 24 (1), 90-91, 2017 | 2* | 2017 |
| First nesting record for Collared Pratincole Glareola pratincola on the Kenyan Coast S Valle Scopus 25, 67-68, 2005 | 2 | 2005 |
| Recalibrating risk: Implications of squirrelpox virus for successful red squirrel translocations within mainland UK C Shuttleworth, D Brady, P Cross, L Gardner, A Greenwood, N Jackson, ... Conservation Science and Practice 3 (2), e321, 2021 | 1 | 2021 |
| First record of Mesoplodon densirostris (Blainville 1817) from continental East Africa S Valle African Journal of Marine Science 34 (3), 453-454, 2012 | 1 | 2012 |
| A review of bovine tuberculosis transmission risk in European wildlife communities W Justus, S Valle, O Barton, A Gresham, G Shannon Mammal review, 2024 | | 2024 |
| Capturing red squirrels (Sciurus vulgaris) on camera: A cost‐effective approach for monitoring relative abundance and habitat preference G Shannon, S Valle, CM Shuttleworth Ecology and Evolution 13 (10), e10536, 2023 | | 2023 |
| First documented records of Sanderling Calidris alba for São Tomé and Príncipe S Valle The Bulletin of the African Bird Club 25 (2), 219-220, 2018 | | 2018 |
| Testing long-watch counts as a surrogate for density estimates to monitor parrot populations F Marolla, SJ Marsden, L Boitani, S Valle 101st ESA Annual Meeting (August 7--12, 2016), 2016 | | 2016 |
