def parse_species(species_data):
    """Iterate over list of species at each site."""
    parsed_species_data = []
    quality_list = []
    for species in species_data:
        if species['@AirQualityBand'] != 'No data':
            species_dict = {}
            species_dict['description'] = species['@SpeciesDescription']
            species_dict['code'] = species['@SpeciesCode']
            species_dict['quality'] = species['@AirQualityBand']
            species_dict['index'] = species['@AirQualityIndex']
            species_dict['summary'] = species_dict['code'
                ] + ' is ' + species_dict['quality']
            parsed_species_data.append(species_dict)
            quality_list.append(species_dict['quality'])
    return parsed_species_data, quality_list
