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Greenwillows Associates Ltd

Professional Ecological Services

About Greenwillows Associates Ltd

Steve Parnwell founded Greenwillows Associates in 2001 following his retirement as a police wildlife liaison officer. In 2004 the business was incorporated as a limited company and continues to move from strength to strength with many loyal customers demonstrating their satisfaction with service delivery through continued repeat business.

Staff Profiles

Steve Parnwell

is Greenwillows' Principal Consultant Ecologist with over 40 years experience as a field naturalist and ecologist. Formerly the country's most senior operational Police Wildlife Liaison Officer at the rank of Chief Superintendent prior to his retirement from the service, he brings a unique set of skills to the field of ecological consultancy to achieve favourable outcomes for both our clients and the environment.


Emma Parnwell

is our Senior Ecologist with years of experience working within Greenwillows Associates. She has an MSc in Conservation from University College London (UCL) and in 2012 spent 6 months working as a research assistant on various botanical and small mammal projects in Chile, South America where she achieved a working level proficiency in Spanish. She has a Level 2 Class Licence for surveying bats and has a particular interest in bat ecology. Now based in in Cambridgeshire, she works all over the country coordinating field work and assisting Greenwillows Associates to deliver high quality, evidenced-based ecological reports.

Jodie Twose

is an Ecologist, who has been working in consultancy since 2015. Jodie has an MSc in Wildlife Conservation with an interest in ecosystem services. Jodie is certified in tree climbing and aerial rescue and holds a Level 2 Class Licence for surveying bats and a Level 1 Class Licence for surveying great crested newts. Jodie has a keen interest in botany and is developing identification skills through the University of Leicester.

Amy Smith

is an Ecologist with Greenwillows Associates who started working with us in 2015 after completing an MSc in Ecological Applications at Imperial College London. Amy's interests lie in habitat management and conservation, with field experience in entomology and botany. Amy works closely with the Senior Ecology team to deliver high-quality habitat assessments and ecological reports for our clients.



Jay Ghumania

joined Greenwillows Associates as an Assistant Ecologist in 2018, after a previous spell as a field worker in 2015. He completed an MSc in Conservation Ecology in 2017 and has previously carried out research on marsh warblers and corn buntings. With strong GIS skills and long-term interests in botany and ornithology, Jay works closely with senior ecologists to carry out ecological surveys and produce reports. He holds a Level 1 Class Licence for surveying Great Crested Newts.

Rebecca Butler

is an Assistant Ecologist who recently joined Greenwillows Associates after completing a season working as a field worker. She holds a BSc (Hons) in Ecology and an MSc in Plant Conservation. She has three years’ experience carrying out fieldwork on bats, reptiles and habitat management; as well as five years working in plant sciences. She is also a qualified and experienced horticulturalist.

Claire Parnwell

is the Finance and Project Manager at Greenwillows Associates. She works closely with the Senior Ecology team to manage the head office. Claire is also our lead bat data analyst, undergoing continuing professional development to utilise the latest echolocation software to present bat-call analysis in a comprehensive and accessible way for clients.



Mary Parnwell  

is Greenwillows' Arboricultural Project Manager, responsible for coordinating tree and vegetation related works including habitat management and arboricultural surveys. Mary is also completing her Level 4 in Arboriculture and has passed her tree climbing and aerial rescue (CS38) to undertake inspections of trees and to be able to rule out potential bat roost features. In addition to this, Mary holds a Nebosh certificate in Occupational Health and Safety to oversee Health and Safety Policy development and implementation, liaising with the rest of the workforce. Her interests lie in sustainable urban design, and new developments in tree planting with climate change and flood management in mind.

Kevin Lunham

is our Arboricultural and Vegetation Works Team Leader and Ecology Field Worker. Kevin has a background in conservation and has worked for many years on some of Cambridgeshire’s most sensitive nature reserves. As well as carrying out practical management of sites, he's also involved in monitoring wildlife across the county, recording moths, reptiles, bats, birds and fungi. He's also a professional nature photographer and when not working can often be found out in the countryside searching for new subjects.

Jayne Ramsay

is an administrator with Greenwillows Associates. She assists Claire with the day-to-day running of the office. Outside of work, she is an advocate for sustainable living, working with the council as a volunteer to promote composting and recycling.