Record Flower Features and Insect Visits Together
Petals are usually the colorful part of a flower that draws insects. Learn what to note about flowers and visitors in an informal, repeatable prairie field log.
Contents
Which part of a flower is usually colorful and attracts insects?
In most showy flowers, the petals are the colorful part that catches an insect's attention. The color works as an advertisement. What the insect is usually after is a reward: nectar, pollen, or both. When you watch a flower, note the colorful display and the parts that hold the reward. Insects respond to both.
On many prairie plants, the display comes from many small flowers packed together rather than from one large bloom. Purple prairie clover (Dalea purpurea) is a good regional example. The Montana Field Guide describes it in plains and valley grasslands as having erect stems 15 to 50 cm tall, leaves with 3 to 7 narrow leaflets, and bright-purple flowers clustered in spikes 1 to 4 cm long. An insect working that plant may move around a single spike, so decide early whether you are recording the spike or the individual flowers within it.
How bees and flowering plants are connected
Pollinator Partnership defines pollination as the movement of pollen from the anther, the pollen-bearing part of the flower, to the stigma, the receptive surface that leads toward seed and fruit production. Bees and other animals can carry pollen from flower to flower while they collect nectar or pollen for themselves. Plants have other routes too, including self-pollination, wind and water.
This distinction matters for field notes. A bee landing on a flower is a visit. It does not show that pollen moved to a stigma, and it does not show that seed or fruit followed. Record what you can see, such as landing, probing the flower, or moving between flower units, and describe it as visitation rather than pollination.
What to record about the flower
- Plant name, or a temporary code such as "purple spike A" if the identification is unresolved
- Photos of the flower, stem and leaves, so the identification can be checked later
- Visible flower structure: single flowers, heads, spikes or umbels, and their color
- The counting unit you chose and how many of those units are open in your patch
- The boundaries of the patch you are watching
Leaf and stem details are worth photographing because flower color alone can mislead. The purple prairie clover description relies on leaflet number and spike size as well as flower color.
What to record about the visitor
Describe each visitor at the level you can support, such as bumble bee, other bee, fly, butterfly, moth or beetle. Note your confidence. An honest "unidentified bee" is more useful than a guessed species name. Bumble bees show why this matters. The Montana Field Guide reports Hunt's bumble bee (Bombus huntii) across Montana in suitable habitats, including mixed prairie. Identifying a female uses a combination of features: orange or red on abdominal segments T2 and T3, yellow hair on the face and thorax, cheek proportions, and hind-leg structure. An orange-banded bumble bee seen briefly in flight does not meet that standard, so log it as a bumble bee with a description and a photo if you have one.
A repeatable log template
Before you start counting, define a visit event. For example, you might count an insect landing on a flower unit and touching it as one event. Decide in advance how to handle an insect that leaves and returns, and flag any event that may be a repeat by the same individual.
Date / location:
Plant name or code:
Photo refs (flower / stem / leaf):
Flower structure observed:
Patch defined as:
Counting unit / number open:
Start time / end time:
Sun or shade:
Temperature (only if measured):
Wind:
Visit event definition:
Time | Visitor description | Confidence | Behavior seen | Possible repeat?
-----|---------------------|------------|---------------|-----------------
| | | |Turning a count into a rate
Illustrative example: you record six visit events in ten minutes. That is 0.6 recorded visits per observation minute. Keep the six and the ten in your log next to the result. The figure is a record of events during your watch. It does not mean six different insects were present, and it is not a pollination rate.
Comparing one session with another
Where possible, return to the same patch and use the same event definition. Compare the raw logs together with duration, number of flower units, plant identity and weather. If any of those differ, describe the differences instead of reading a larger count as more insects in the area. Time and setting matter. An Australian mango-orchard study found that visitor abundance and diversity declined with distance from adjoining native vegetation. Stingless bees made most daytime visits and moths made most nighttime visits. Those results apply to that orchard and do not rank Montana visitors, but they show why time of day and surroundings belong in every entry.
A structured survey method for reference
The UK Pollinator Monitoring Scheme's Flower-Insect Timed Count (guidance version 7, 2025) shows how a formal protocol handles the same problems. It uses a 10-minute count in a 50 by 50 cm patch and records the target flower units, the weather and broad insect groups. It keeps unidentified categories and zero counts, and it tries to avoid counting the same individual twice as it moves between flowers. Its flower units can be individual flowers, heads, spikes or umbels. The scheme is designed for the UK, and its weather thresholds and data submission arrangements do not carry over to Montana. Your informal event log also counts events rather than individuals, so keep the two approaches separate in your notes.
Related articles
Reading Soil Survey Maps for Prairie Nature Observation
How to read soil survey maps to predict prairie vegetation, wetlands and bird habitat around Medicine Lake, Montana, and how to plan careful, low-impact field visits.
Understanding Watershed Boundaries and Drainage Maps
What sets a watershed's boundary, how to trace one on a topographic map or in GIS, and why flat, pothole-dotted prairie like the country around Medicine Lake makes drainage maps harder to read.
Documenting Prairie Burrow Entrances and Occupant Uncertainty
How to record prairie burrow entrances, mounds and habitat in Montana grasslands while keeping the original digger, current occupant and unseen tunnels separate.
Reading Prairie Feeding Relationships and Their Evidence
How to tell observed consumption, apparent feeding, published diet links and ecological explanations apart when reading or building prairie food webs.
Documenting Fungi and Using Montana Identification References
How to photograph and record fungi on the Montana prairie, use Montana Field Guide PDF tools, read observation charts and judge mushroom ID apps.
Interpreting Prairie Land-Cover Classes and Map Uncertainty
How to read a prairie land-cover map's coverage, class definitions, resolution and accuracy figures before using it to plan grassland and wetland bird observation.
Match Montana Lichen Taxon Codes to References and Interpret Observation Charts
Match nine Montana Field Guide lichen codes to scientific names and synonyms, check their monthly observation charts, and learn what the counts can and cannot tell you.
Find Montana Amphibian Call References and Interpret Survey Records
Compare Montana amphibian call references, learn how the Natural Heritage Program's roadside listening protocol works, and tell a casual listening note apart from survey and monitoring evidence.
Compare Maps of Prairie Landforms and Sediments near Medicine Lake, Montana
How to compare the USGS Medicine Lake topo map, MBMG Report 738 and MBMG 540 to read glacial landforms and sediments while keeping buried geology separate.
Record Plant Leaf and Flower Stages and Interpret Monthly Observation Charts
How to record defined leaf and flower stages on repeat prairie plant visits, read a monthly occurrence chart correctly, and judge whether outside studies apply.